People report losing their sense of self in several circumstances: during meditation or flow states, through certain drugs, in extreme physical exertion, and through certain neurological conditions. The reports are interesting partly for what they agree on. There is, almost universally, a quality of liberation in the experience. The self, when it goes, tends to take anxiety with it.
This is strange, if you think about it. If the self is the locus of experience, the seat of consciousness, the thing that has the experience, its absence should be an absence of everything. Instead people consistently describe it as richer than ordinary experience, not poorer.
What neuroscience says the self actually is
The brain maintains what researchers call a default mode network, a set of regions that become active specifically when you're not engaged with the external world. This network, which includes parts of the prefrontal cortex and the posterior cingulate, is thought to underlie self-referential processing: thinking about yourself, imagining your future, replaying your past, considering how others see you. It is, in a functional sense, the neural correlate of the self.
Crucially, this network quiets down during flow states, under certain psychedelics, and in experienced meditators. The self isn't elsewhere, it is temporarily absent. And in its absence, something else is present: direct, unmediated engagement with whatever is actually happening.
The narrator and the story
The philosopher Derek Parfit spent much of his career on exactly this question. His conclusion was radical: personal identity, the sense that there is a continuous "you" persisting through time, is less robust than it seems. It depends on psychological continuity: memories, intentions, personality traits that connect your past and future selves. But those connections are matters of degree, not absolute. The "you" of thirty years ago and the "you" of now are connected by a long chain of overlapping states, but the chain is not the same thing as a persistent entity.
Parfit found this conclusion liberating rather than terrifying. If there is no deep further fact about personal identity, if the self is a useful fiction rather than a metaphysical bedrock, then the things we typically base on it (self-interest, resentment, the fear of death) have weaker foundations than we thought. The self that fears dying is not a permanent thing that gets destroyed. It's a process that gradually transforms into something else, as it always has been.
What you would actually lose
So what would you actually lose? Probably: the anxiety that comes from needing to protect a consistent self-image. The cognitive overhead of maintaining a narrative about who you are. The sharp distinction between you and everything else, which is real but perhaps not as fundamental as it feels.
What might remain: awareness, sensation, responsiveness to the world. The processing continues. The body continues. The behaviour continues. Reports from people with significant amnesia or from those who've had profound self-dissolution experiences suggest that functional living is largely intact. The narrator has gone. The story still happens.
What you'd lose, perhaps most precisely, is the ability to suffer about the self, which is distinct from losing the ability to suffer about things in the world. And which may, paradoxically, make the world considerably easier to be in.
Disagree? Say so.
Genuine pushback is welcome. Personal abuse is not.
