All Identities Are Fictional

… is part of the truth which is a line from a book.

It's a version of no self or non-self which is that Buddhist thing that sometimes gets twisted into the idea that you don't exist.

You exist, but you're not what you think you are. It feels like you're a thing, like something you could point at at say this thing is separate from the other things. Buddhism says no matter how hard you look you'll never find that thing, because it's not there. What you are is more like an event. You're an event that started with your birth and will end with your death. Except that's not right either because those are pretty arbitrary boundaries. Didn't your event start when your parents met? But… that couldn't have happened without their parents meeting. So you work your back and you end up with what Carl Sagan said.

If you wish to make an apple pie from scratch, you must first invent the universe.

– Carl Sagan

And likewise to make you, there has to be a universe so really your event started with the Big Bang. And after you die your influence however large or small that may be, will continue and create more ripples, so your event doesn't really end until the universe does.

This is largely pointing out that you are not a standalone thing that exists in isolation, you are part of a larger whole. You couldn't exist without it and it can't exist without you. It might be, but it wouldn't be the same. Which is also part of no self and impermanence and all that jazz.

- this should mostly be a pointer to no self