The tiny mad idea, a thought of separation, produced a "dream".
The dream is comprised of illusions. Thoughts of separation must always be illusory because reality is not separate. A thought of separation is also a thought of death (opposite to life).
Thoughts of separation must always produce "form". Form is a limited illusion. It just means, the "form" that the illusion takes - its appearance, which differentiates it from other illusions. All illusions are limited. All illusions are forms. Forms can be subtle, mental, energetic, emotional, or physical. They are all dreams, but of varying degrees of deception or "solidity". As Jesus says, waking dreams and nighttime dreams differ only in their form - both are illusions.
A thought of separation HAD to produce what we call a physical universe in order to fulfill, in the extreme, the death-wish which was put in place when we "sinned". Sin was believing that separation was possible, which began the dream in the first place. As soon as it began, death was written into it and this HAD to lead logically and consistently to what appears to be a "universe", containing a "world", in which there are "bodies", which can seem to die.
People within that world, inhabiting bodies, have in their minds *identified with* illusions and are now experiencing a layer of illusions ON TOP OF the illusion of the physical universe itself. They mis-interpret it and project stuff onto it. This is a *secondary layer* of illusions. The first layer of illusions was dreamed by the whole of the Son of God, and the second layer is added by individual ego-identified people.
When this layer of illusions (delusion) is seeming to happen, people mis-percieve "the world", or the physical universe in general, and do not recognize it. They distort it, attack it, judge it, and see their own sin in it. This is a false perception of a false perception. The universe was false perception in the mind of the Son of God in the first place, and now we are further mis-perceiving it even more.
"Individuals" have their own mis-perceptions of the illusory world, but also the illusory world itself is a mis-perception in the larger shared mind.
When we apply forgiveness, we are correcting mis-perceptions, which are beliefs in sin being real, and are taking back our projected hate from the illusory world. This causes us to BELIEVE LESS that the illusion of the world is actually reality. We were deluded so long as we thought the world was real. What we thought ABOUT the world was a mis-perception OF the world.
Believing the world is real, is believing an illusion is real. The world is not real. I it an illusion. It is a dream of a world. And being part of the physical universe, the same applies to the whole universe.
When the mind is purified of these mis-perceptions OF the world, we come to a CLEAR perception OF the world, which is "True Perception". This true perception looks "with truth" upon what the world "is". It *recognizes* that the world is an illusion, NOT a reality. "Making real" the physical world enforces upset and victimhood. Making it unreal, recognizing its urneality, frees us from suffering.
Being able to clearly perceive that the world is actually an illusion, is sight of the "real world". It is the real, as in actual, world that's there. Or to put it another way, we're seeing the "true state" of the world, which is that it is not real.
Jesus referred to it as the real world ONLY to contrast it against a perceived "unreal world" which is what you perceive when you are attacking yourself and projecting it onto the illusion of a world. Self-attack distorts your perception and shows you a world of hate. A forgiven self shows you an illusory world which is forgiven - the forgiven world, the "real" version of the illusory world - recognizing that it is NOTHING MORE THAN AN ILLUSION.
At that point, you have true perception and are seeing correctly, recognizing the world was never real and the physical universe that seems to contain it is not real whatsoever. This is where you then have a tiny step to take to cross over to the "REALLY REAL" "world", which is God's Creation, God's universe, which is beyond all physicality. In the light this produces, the physical world, which was an illusion, eventually disappears from the mind of the collective Son of God, BECAUSE it was not real. All the stars disappear in light, etc.... and the "truth of" the "real world", the true-perception of the lie, easily allows you to translate that to mean that only God's reality is true. The world is forgotten, and God is remembered.