"I are all We" is a phrase taken from the Loveletter. It's a declaration of existence ("I AM") from a person who has CHIM, that is to say a person who has realized that he is also everyone else, too. Hence, "I [am and I] are all we." Why is he everyone else? The universe is really just the dream of a Godhead, with each person being a personality in this dream. Of course, no one realizes this, and everyone thinks that they are individuals who exist (I AM). CHIM is realizing that you're really just a fragment of someone's imagination, and therefore don't really exist, but then saying "screw it, I do exist," saying I AM, and remaining alive.
of course though that the word "Exist" is normally put into meaning of just being able to detect it with all 5 senses, and if there is such thing as "Truly Existing", the mind would never be able to find out because it would require the senses, For an example, Try to think of a Color that you've never seen before in your life, or a color that some may say Doesn't exist because they've never seen it.
How is one to know 100% that they are just apart of some dude's imagination or the whole thing's just a dream? die? but even if done and there was an afterlife there's still the option in mind that even the afterlife is just a dream.
I read a book on Alteration magic and is closely related to this "Chim" thingy going on here, noticeably having to know that nothing is real and therefor physics no longer apply making you able to alter the world around you.
the only way i'm understanding this is putting it in the Matrix's perspective, lol
There Is No Spoon O.o