There is a sequence of cause and effect, in which a higher level causes a lower level.
God causes the Son of God. The Son of God causes his dream of separation. God is cause, the son is effect. The son shares the father's ability to cause, and causes his dream, which is an effect.
Everything in the dream is an effect of the Son's dreaming. Even the things which appear to be causes cannot be causes, they are illusions of causes. The Son of God implemented both the "things that cause" and "the effects of those causes" simultaneously, both as effects.
If he were writing a movie and filming it, it would mean setting up the car to come into the scene at just the right time, and setting up the conditions for the crash, and setting up that which it crashes into, and setting up the way that the crashed-into thing is changed by the crash. All at once. There is no cause or effect on the level of the movie, it's an illusion.
This is perhaps even more easily understood in the behind-the-scenes creation of digital movies where there isn't any cause-and-effect laws of physics to comply with, so if you want there to appear to be "an effect" of something happening, you have to actually literally manually make that effect, ie cause it, otherwise the car will pass right through the wall and everyone would be like "that's not real".
When we mistake the ORDER in which the levels are thus arranged, mistaking an effect for a cause, we're believing a lower order level has power/will/mind/control over a higher order level. This confusion of the levels, or attributing some properties to some levels which they do not have, based on what is true for another level, is level confusion. "All sickness comes from confusing the levels".
Believing the world (an effect) is a cause and it's causing you.
Believing you are at the effect of the world or a victim.
Believing something in the world has an alien will with a power to change you against your will.
Believing in death happening to you against your will.
Believing you are sick "because of" something outside of you.
Believing the world has a "magical ability" to make things happen (magic).
Believing God's will is not your will - the authority problem.
Believing your body has power over your mind, and a mind of its own.
Believing your body is coming from the world, not from your mind.
Believing there are causes in the world which produce effects, and effects which can become causes in their own right, which can in turn transform causes into effects.
Believing that every action has an equal and opposite reaction.
Believing the ego's laws of physics, biology, chemistry, etc.
Believing there are life forms in the world which are actually alive and animated by nature.
Believing the world is natural and God's creation.
Believing in an alien will separate from your own which therefore terrifies you because there is nothing you can do to stop it from affecting you.
Believing you are sick or broken or hurt or upset or afraid or sad because of something that happened in the world or in other people.
Believing that salvation, truth, love, safety, peace, and innocence all exist external from yourself and that you need to seek out there to find it, and that you will find it if you try hard enough.
Believing you are unlovable because love is not in you already where God put it.
Believing God is not your father and that you are the cause of him.
Believing in real sin, with the ability to create real effects in God, to change God, to change reality, to redefine the truth and to make permanent irreversible changes which can never be healed.
Believing in judgement and unforgiveness and anger as being justified due to what happened to you from an external cause against your will.
All of these are level confusion. THE ENTIRE EGO THOUGHT SYSTEM IS LEVEL CONFUSION!
They all entail believing there is a cause within a level of effect. That the "lower" order level of illusions have "become alive" or gained a mind or will of their own. Whatever it was that, in truth, came FROM the causality of your mind, has suddenly because a cause OF your mind. That's confusion!
Miracles place the levels in their correct order. Miracles are expressions of the fact that only mind, TRUE CAUSE, can cause, and everything else is in this world is an EFFECT, including the world (earth) itself. The world does nothing at all, it is only an effect. It has NO CAUSES in it. Nothing is happening to you. No-one is victimizing you. You are not at the effect of the world you see.
Correcting level confusion is the only correction needed to reach the atonement. When everything is seen in its correct sequence, you will have mind over matter, power over all illusions, and nothing in the world will be able to withstand the causal Power of God that flows through you. Miracles are supernatural BECAUSE they come from a higher level of causality, demonstrating that the lower level IS an effect and its illusions of cause-effect do not really apply. They come from above the "nature" of the world and PROVE that no cause in the world has any power whatsoever, and therefore its "effects" are easily changed.