While you have "false perception", your mind is going to be split. It is not merely separated FROM the truth, it is separated WITHIN itself, divided against itself. The ego is a state of self conflict and contradiction. And that means there is disassociation, or two parts, where one part seems to be "you" and the other part seems to be "not you". When you have false perception you are "in two minds."
It will SEEM as though you are "separate from" this world, as a separate perceiver or some kind of bystander who just observes it. What is outside the body (split) seems to be "not you" and what is inside it seems to be you. Yet BOTH of them are in your mind, which has used the body as a separation device to split you from YOURSELF. In this state, you will think that your "illusions" are ONLY to do with your illusions ABOUT the "world that is separate from you", which seems to be objectively real.
However, the purpose of this split is to disown the fact that the whole PLANET is coming from YOUR MIND, and what is "out there" is literally just another part of YOUR MIND that you've disowned. You are the one who MADE IT, it is PART OF your false perception. "The world is false perception". And you cannot truly get to the recognition/perception that both "inside the body" and "the world out there" are BOTH in you, until you can undo enough of the disassociation. The world "out there" is your unconscious mind. The world "in here" seems to be your conscious mind. The division has to be undone.
The sense that "you are not the world" is the ego, hiding in a dream, associating "self" and "what I want" with "you in the body" and associating "what I don't want" with what's outside. When you dream at night, you create entire environments with buildings and streets and people. And it is your mind making all of it. But at the same time, your mind invents a body for you to inhabit inside of this environment, and puts your awareness into it, and makes you unconscious of the dreaming that is making the environment. And so you then perceive AS IF, you are ONLY that which is in the body, looking out upon a world that you think YOU DID NOT MAKE. Even though your mind is making EVERYTHING in the scene.
It is the same in the waking world. Earth. You SEEM to experience that you did not make the world, that it is too big and complex for you to put there yourself, that you are limited to the inside of your little body, and that everything outside the body is "not of you". You seem to have no control over it, no power to directly manipulate it with your mind, and it seems to do things "on its own". BUT THAT IS PART OF DREAMING. And it is in fact YOU, who is putting ALL of the environment there, and making the houses and streets and people. But you are not aware that your larger mind is DOING that because you've DISASSOCIATED from it and think you are just this tiny little crapper stuck in a body peering out and "perceiving" a world that you didn't make. Which leads you to believe that since you have disowned it (the other half of yourself), GOD must have created it. Which is a lie.
WHEN YOU WAKE UP to the truth, and this disassociation and pretense and "hiding in the dream in a body" is overcome, you will come to recognize that YOU ARE DREAMING THE PLANET. That you are looking at a dream that is coming from your mind in its ENTIRETY, not just your little body or your little fenced off corner of the dream. And so now your mind is responsible for MAKING THE WORLD. And it is a dream world, because you are DREAMING IT. You are inventing it as you go along.
To recognize this is to be "awake in the dream", which really means, to be STILL DREAMING but aware that the dream is coming from your mind. It isn't the end of dreaming, nor does it represent the desire to STOP dreaming and be TRULY awake. It is a state of lucidity, but NOT a state of being TOTALLY AWAKE IN REALITY. And because the body is part of the dream, having it, using it, seeing it, keeping it, is all part of STILL dreaming.
Given you are dreaming of a UNIVERSE, to truly awaken from the dreaming state is to END the universe, to DISAPPEAR the body, to see the world VANISH, and FORGET THIS WORLD ENTIRELY, this whole planet and everything on it and beyond it. And to GO HOME TO HEAVEN. Heaven is the container of your "dreaming self" which is reality and is a PLACE and has not changed since you fell asleep.
And only upon waking up FROM dreaming, do you truly awaken into a state where there IS NO DREAM OF ANY KIND, no bodies, no planets, no animals, no plants, no stars or galaxies. Just pure light, love, immortality and eternal life. Pure spirit. What you REALLY ARE. Your real self in God. The Kingdom of God, which GOD created, and which is your real home.