The entire content of the physical world is happening within the split mind of the ego. It is all happening inside the one mind of the ego, shared collectively by all individuals within it.
Every event that takes place always has some form of separation involved, where there is a cause and a separate effect, a victim and victimizer, some kind of opponents, enemies, conflict.
Every role, every side, every persuasion of someone being for or against or right or wrong, all of them are part of the ego split mind.
The ego mind is a vast mind spanning this entire universe. It includes all planets and stars and galaxies. Every single event that transpires is an expression of self attack.
In self-attack, a single mind is at war with itself. It has divisions within itself which have split it apart and now, what used to be a single will has become multiple wills. And each of these wills is slightly different and has a different focus or goal. And none of them agree with each other, and so all of them are in competition. Chaos is the result (see the laws of chaos in the Course).
This gives rise to all manner of illusions across a vast spectrum throughout the world and throughout all history. In every war there appear to be two sides, the good and the bad, the oppressor and the oppressed, the attacker and the attacked. And yet both of those sides are happening inside the one ego mind. The one ego mind is playing against itself, is at war with itself, and is both its own attacker and its own victim.
When you do not see this and you fall for the illusion that one of the sides is better than the other side, one of the viewpoints is more justified or righteous, one of the parties is better or worse, or somehow there is an inbalance or difference between them, you have become fooled by the ego's illusions. You are misperceiving and are now experiencing the ego.
There is a line in the Course which says literally, "The world IS false perception." It does not say that the world is perceived falsely by individuals. It says there is one mind, the one ego mind, which contains the entire physical universe, within which there is a false perception happening. That means there are illusions appearing, there is misunderstanding, there is division and separation, there are multiple wills, and now there APPEARS to be many different sides all who do not quite agree with each other. And some of those sides now seem to be defending various positions or opinions, and yet ALL of those sides are part of the ego's state of misperception.
The world, the physical world, IS mis-perception taking place within the one ego mind. The world, the illusion of a world appearing, with all of its events and people, is actually a picture in a single large mind, where that mind is hallucinating, and is experiencing self-attack, and is having a major war with itself. This is why the Course says that the world is a "picture of the crucifixion of God's Son" - an envisioning within God's Son of what it would be like if He were destroying himself.
Everything in this physical universe is at war with everything else. For particles of matter to even appear to exist there has to be difference and conflict, to allow there to be a fluctuation of some kind, which creates a localized point in spacetime where something shows up to demonstrate that what is true there is not true elsewhere.
If we are in the business of correcting perception, which the Course very much advocates, then we need to realize that this correction of perception cannot JUST take place within your little ego mind within your little ego body. Your little ego mind is only a TINY part of the entire ego mind. There is vast mis-perception occuring in and AS the entire world itself. THAT MIND, that large mind, which is dreaming the whole world, is mis-perceiving and experiencing self-attack all the time. THAT MIND needs to receive perceptual correction, beyond your own little PIECE of that mind receiving correction.
There is no world, by the way.
When you wake up to the `limits` of your own personal separate ego little mind, confined to a body still and subject still to the laws of the world, such as death and physics and biological processes and so on, and also spacetime itself, you have corrected the perception of a PART of the ego mind, but you have not corrected the grander perception of the entire ego mind, which is still hallucinating a universe-scale war against itself. This is the difference between waking up in the dream and having the war still wage all around you, versus waking up FROM the dream and ENDING THE WAR WITH YOURSELF, which means ENDING THE ILLUSORY UNIVERSE.
If there is a leaf on a tree which is not receiving quite as much sunlight today because there is another leaf above it which is blocking the light, this is a WAR on that leaf and will "cause" it to die off more quickly. If you accelerate what takes place underground as tree roots look for food, you will see that they literally fight with each other and try to fend each other off to secure ownership of food sources. The trees are at war with each other. When there is a cloud in the sky, blocking the sun, that is a war on everything beneath the cloud. I'm not kidding.
This entire universe is a state of war, a state of conflict, a state of self-attack. The one mind is dreaming of what it is like to attack itself and kill itself. It is a dream of dying and death. It's a desert where starved and thirsty creatures come to DIE, having hated a while. Do not glorify one little part of this world over another - that's still part of the ego thought system.
You do not escape this dream of death until you are able to completely transcend all of the laws of this universe and become supernaturally miraculous. You do not escape it by taking a side or seeing one thing as better or worse than another. You do not escape it by falling for the oldest trick in the book, which is that one thing is more spiritual or worthy or special or better or worse or more righteous or more justified or more ego or less ego than something else. EVERYTHING IN THIS WORLD IS AN ILLUSION OF SEPARATION.
This entire world is a mis-perception, an hallucination, happening in the mind of the One Son of God. It is a vast ego delusion, where every single role or side that can be taken "against" another is taken, and all sides and all roles are played simultaneously by that one mind. NO-ONE is more justified than another, and no side that anyone takes is better or more righteous than another. All victims, all victimizers, all opposition, all enemies, those who appear innocent, those who appear guilty, it is ALL part of the same ONE MIND PRETENDING that it is multiple individual selves with different opinions. This is also why no-one's opinion matters to the truth.
Perpetrators of suffering and war and violence and murder and death are just as much a part of the ego dream as those who seem to receive those effects. Both sides are a team. Both of them need each other. Both of them depend on each other to exist. Both of them must exist together in order to exist at all. Look at the whole of the mind - the universal mind - the one mind. Look at what it is doing to itself, within itself. It's beating itself up. It's pretending to put on a performance where one part of itself attacks another part and pretends it doesn't know it's doing it. This is the illusion we need to learn to overlook. This is what forgiveness must teach us to see past and not fall for or be hemmed in by.
There is no world here. it's just one mind's dream of hurting itself. This is the CENTRAL THOUGHT the Course is attempting to teach. That there literally, right in your fucking face literally, IS NO WORLD. This world we seem to live in and on is NOT REALLY THERE. It's a lie. It's a big fat illusion floating in the one mind. It is mis-perception of Self, and mis-perception of God. It's an attempt to destroy who you are. It is the crucifixion of God's Son, of which Jesus's crucifixion on the cross was just a reflection or symbol within a symbol.
There is no world. Can you handle the truth?