There are three basic facts about human life that I find hard to ignore. The first is that we can know the world, though never completely. The second is that consciousness exists, though its relationship with matter remains puzzling. The third is that we continue to suffer even after many of our physical needs are met.
These three facts belong to different areas of thought. Knowledge belongs to science and epistemology. Consciousness belongs to philosophy of mind. Suffering belongs to psychology and spirituality. By themselves, they do not tell us how to live. But they do tell us something important about the kind of reality in which we find ourselves.
The first fact is that we can figure things out. We are often wrong, and our explanations are always open to correction. Yet knowledge clearly grows. We discover how nature works, build technology, cure diseases, and solve problems that once seemed impossible. This suggests that reality is, at least partly, understandable. At the same time, our knowledge is never complete. We are limited creatures looking at the world from a limited point of view.
The second fact is consciousness. Everything we know about the physical world is known through experience. Brains, stars, atoms, and scientific theories all appear to us through perception and thought. Even the idea of matter appears in the mind. In that sense, mind seems prior to matter because we never encounter matter except through experience.
Science, however, seems to point in the opposite direction. Change the brain and the mind changes. Damage the brain and memory, perception, personality, and awareness can change. This makes it natural to think that matter gives rise to mind. So we are left with an unusual puzzle. We know matter only through mind, while we try to explain mind through matter.
The third fact is suffering. Imagine that the main requirements of survival and comfort have been met. We have food, shelter, safety, health care, and reasonable material comfort. Mental suffering does not disappear. We still want things we do not have. We resist things we do not want. When we get something we strongly desire, there is often a period of satisfaction. The wanting stops for a while. Then another desire appears, or another part of life becomes unacceptable, and the cycle begins again.
So we begin with three observations. We can know reality, but only fallibly. We are conscious, but consciousness is difficult to place within a purely material picture. We seek lasting happiness, but finite experiences seem to give only temporary satisfaction.
These observations do not prove any particular philosophy. They are simply constraints. Any larger view of reality that we adopt should, at minimum, make room for them.
Why Ask About Reality at All?
It may seem unnecessary to move from these observations into metaphysics. Why not simply leave them as separate problems?
The reason is practical. We have to live.
Science can tell us what happens when we do something. It can tell us about causes, risks, consequences, and probabilities. It cannot by itself tell us what we should value or how we should relate to other people. The three observations above describe parts of the human condition, but they do not tell us what our role is within it.
If we want a foundation for how to live, we need some view of what we are and how we are related to the rest of reality.
This does not mean that ontology can mechanically produce ethics. A statement about what reality is does not, by itself, logically tell us what we ought to do. There is still a step from “is” to “ought.” But our view of reality can strongly shape what kinds of ethical principles make sense.
The question, then, is whether there is an ontology that does not conflict with our three observations, makes some sense of them together, and gives us a useful starting point for thinking about how to live.
Advaita Vedānta offers one such possibility.
An Ontological Proposal
Advaita makes a radical claim. At the deepest level, reality is nondual. There is one ultimate reality, Brahman. The individual self, or Ātman, is not ultimately separate from it.
This does not mean that Brahman literally breaks itself into pieces and becomes different people and objects. Classical Advaita does not say that the limitless actually becomes limited. Rather, the world of separate people, objects, minds, and events is the level at which ordinary life takes place, while the deeper reality remains nondual.
Advaita often describes Brahman as sat-chit-ananda. These words are commonly translated as existence, consciousness, and bliss, though “fullness” or “limitlessness” is often a better word than bliss. They are not three pieces that make up Brahman. They are three ways of pointing toward the same reality.
I find it useful to connect these three terms with the three puzzles with which we began. This mapping is my own way of organizing the argument. I am not claiming that Śaṅkara presented modern problems of knowledge, consciousness, and suffering in exactly this way.
Sat can be connected with existence and knowledge. Chit can be connected with mind and consciousness. Ananda can be connected with suffering and our search for lasting fullness.
Sat: Existence and Knowledge
Sat means existence or reality.
One of the remarkable facts about our lives is that we can know something about the world. A small part of the universe can construct theories about galaxies, atoms, evolution, mathematics, and the history of the universe itself.
Advaita does not explain the mechanics of how knowledge happens. Perception, reasoning, experimentation, and the workings of the brain remain subjects for science. The contribution of Advaita is more basic. The knower and the thing being known are not, at the deepest level, made of two completely unrelated kinds of reality. Both have their existence in the same ground.
This does not prove that knowledge must occur. It simply removes one possible mystery. The mind and the world are not ultimately metaphysical strangers.
Our fallibility can then be understood at the level of the individual. I encounter reality through this body, these senses, this mind, this language, and this particular place and time. My perspective is limited. So my knowledge can be real without being complete.
This is where Popper becomes useful. We do not overcome our limitations by reaching certainty. We make progress by proposing explanations, criticizing them, discovering mistakes, and improving them. Fallibility is not the end of knowledge. It is part of how knowledge grows.
Advaita and Popper are doing different jobs here. Advaita gives a possible ontological setting in which knower and known share a common ground. Popper explains how limited knowers can still make progress.
I would go one step further, though this is more speculative. Human beings seem deeply driven to understand reality. We ask questions even when the answers have no immediate practical value. Within a nondual picture, one possible way to view this is that reality becomes intelligible within one of its own finite forms. This should not be taken to mean that Brahman is ignorant and needs to learn. It is simply one way of interpreting our extraordinary curiosity about the world.
Chit: Mind and Consciousness
Chit points to consciousness.
Here Advaita makes a more direct claim. Consciousness is not simply another object inside the mind. Thoughts, memories, emotions, and perceptions are themselves things that we are conscious of. Consciousness is that by which they are known.
This changes the starting point of the mind-matter problem. Instead of beginning with something completely non-conscious and then asking how consciousness emerges from it, Advaita treats consciousness as fundamental.
This does not deny neuroscience. Brain states and mental states are clearly related. Changing the brain changes experience. That relationship belongs to the empirical world and can be studied scientifically.
Advaita asks a different question. Even after we describe all the physical and mental processes involved, what is it that makes experience present at all? Its answer is that consciousness is not ultimately produced by the individual mind. It belongs to the nature of reality itself.
This does not solve the scientific problem of consciousness. It changes the ontological starting point. Matter does not have to produce consciousness from something utterly alien to consciousness, because consciousness is already fundamental.
Ananda: Suffering and Fullness
Ananda is often translated as bliss, but that can sound like a permanent pleasant emotion. That is not the main idea I want to use here. Fullness or limitlessness is closer.
If Brahman is the one nondual reality, then there is nothing outside it that it lacks. In that sense it is complete.
The ordinary individual does not experience life this way. We experience ourselves as limited. I am in this body and not another. I can be here but not there. I have some abilities and lack others. I can control some things and not others.
My proposal is that this experience of limitation helps explain our persistent search for more.
We seek pleasure, possessions, recognition, achievement, relationships, experiences, and control. These things can be genuinely valuable and enjoyable. The problem is not that they are bad. The problem begins when we ask them to remove our basic sense of incompleteness.
A finite thing can satisfy a particular desire. It cannot provide infinite completion.
That may explain a familiar pattern. We think, “If only I had this, I would finally be satisfied.” We get it, and for a while the desire stops. Then another limit appears and another desire takes its place.
Psychology and biology can offer their own explanations for this pattern. Advaita does not replace those explanations. It offers a deeper interpretation. If the underlying reality is limitless, while the individual takes itself to be only a limited body and mind, then the search for completeness through limited objects will never quite end.
The limited cannot provide the limitless.
One Possible Picture
This gives us one way to bring the three observations together.
Sat gives us a common ground for the knower and the known. It does not explain cognition, but it makes the possibility of knowledge less mysterious.
Chit makes consciousness fundamental rather than treating it as something that must ultimately be produced from something entirely non-conscious.
Ananda gives us a way to understand why an apparently limited individual may repeatedly seek a fullness that finite things cannot permanently provide.
None of this proves Advaita. Other ontologies are possible. The attraction of Advaita, for me, is that one relatively simple picture of reality can accommodate all three observations without dismissing any of them.
But this is not yet enough.
We still have to answer the question that motivated the search in the first place.
How should we live?
From Reality to Ethics
If Advaita is true, then this individual and other beings are not ultimately separate realities. The same underlying reality is present here and there.
That fact alone does not logically produce an ethical rule. I need one additional principle.
Mine is this: if I have no fundamental privilege over other beings, then my desires should not automatically count for more simply because they are mine.
From that principle, an ethical direction begins to emerge.
Other beings should have space for their own expression. Their existence is not merely part of the scenery of my life. They are not here simply to serve my desires. If the same underlying reality is present in them, then their lives and their expression matter too.
This does not mean that everyone can do whatever they want. Our lives overlap. One person's freedom can restrict another person's freedom. We live within families, communities, institutions, and societies. We make commitments. We depend on one another.
So ethics cannot consist only of giving others freedom.
It must also ask what is mine to do.
Duty
Each of us occupies a particular place in the world. We have certain relationships, abilities, commitments, opportunities, and responsibilities. These differ from person to person.
I use the word duty for the attempt to figure out what this particular person ought to do within those circumstances.
Duty is not always obvious. There is no simple formula. Responsibilities can conflict. Consequences are uncertain. We can misunderstand a situation. We can also fool ourselves.
This is where fallibility returns to the argument.
We should not assume that our first idea about our duty must be correct. We have to think, listen, consider consequences, accept criticism, and sometimes change course. Moral judgment, like other human judgment, is fallible.
There is also an important clue about what duty is not.
Duty is not self-aggrandizement. It is not a grand name for making myself more important, powerful, admired, or dominant. My ambitions do not become sacred merely because I call them my purpose.
If the ontology is nondual, then duty should move in the opposite direction. It should reduce the special status that the ego gives itself.
I think of duty as service. The abilities and opportunities present in this individual can be used in service of something larger than the individual.
In religious language, I find another expression useful. The individual can try to become a conduit for the divine.
That does not mean believing that every impulse is God's command. It means almost the opposite. It means asking how this particular life can be used without making the ego its final purpose.
Duty may therefore require limiting my own freedom. I may want to do one thing while my responsibilities require another. The aim is not to maximize my self-expression. It is to give other beings room for theirs while trying to do well what is mine to do.
A Way to Live
The ontology now has a practical role.
Because our knowledge is fallible, we should remain open to learning and correction.
Because consciousness is not merely another possession of the ego, we can examine more carefully what we mean when we say “I.”
Because finite things cannot provide limitless fullness, we can enjoy them without demanding that they complete us.
Because other beings do not have less fundamental reality than we do, we should give them room for their own lives.
Because we occupy particular roles and relationships, we should try to discover and perform our duty.
And because our understanding of duty is itself fallible, we should approach it with humility rather than certainty.
This is not a withdrawal from ordinary life. It is a way of participating in it.
Liberation
Advaita goes further than the ethical framework I have drawn from it. Its central claim is that liberation comes through knowing what one truly is. The individual takes itself to be merely a limited body and mind. Advaita says that this is incomplete. Ātman is not ultimately separate from Brahman.
Liberation therefore does not mean acquiring some missing thing. Nor does it mean producing a permanent state of emotional pleasure. Bodies can still hurt. Minds can still react. Problems can still arise. Duties can still require difficult action.
What changes is the basic demand placed upon life.
If completeness is not something that must be acquired from outside, then the world does not have to satisfy every desire before one can be whole.
We can continue learning without requiring certainty. We can continue acting without requiring every outcome to go our way. We can enjoy finite things without requiring them to provide infinite satisfaction. We can serve without needing service to enlarge our identity.
Life continues. Knowledge grows. Choices remain difficult. Pleasure and pain still occur.
What can weaken is the demand that reality must become something else before we can be complete.
That is the promise I find compelling in this philosophy: not endless pleasure, but a deeper freedom to live fully within the world while being content with what is.