Murder, death and suicide are not particularly pleasant topics. But they are an important part of the teachings of ACIM.
The ego's thought system of separation claims that you can do something to another without experiencing any effects. This is due to the separation of cause and effect, which also means, separation of Father (cause) and Son (effect). Another way of putting this is getting away with murder. As Jesus says in the Course, "What is not love is murder."
Following separation from God, "sin" was the original idea of murdering God. It was as if to say, you as the Son of God successfully attacked God, affected Him 100%, have destroyed Him, produced irreversible consequences, and now there is absolutely NO HOPE of ever being forgiven.
Sin is an attempt to completely oppose forgiveness and to establish that you MUST be guilty and punished for your sin. Your sin was so black and white, so terrible, so murderous of an idea, that there is just no way it will be undone or forgiven. You seem to remain, but God is dead. And now you might as well die.
This left you in a terrible state of mind where you saw no hope, no way home, no possibility of healing, and that you basically might as well just die. All justification for living or carrying on or staying alive was blotted out. Death became your ONLY option after that. All dreams of sin DEMAND death and lead to death.
Now, you might think this is just theory. But think about this some more. How many people have died in bodies? How many people commit obvious suicide because they can see no hope and believe they deserve to die? And how many people who die from all other methods or reasons are also committing suicide because, somewhere deep inside of them, they believe they murdered God?
Within the dream, the belief in ego IS a belief in murder. Jesus tells us that all of our ego thoughts are murderous regardless of their form or severity. A little annoyance is as murderous as outright rage. All thoughts of separation are attempts to murder. All ways that we find someone else guilty while we seem innocent is a state of murder.
Billions of people are walking this earth with a DEATH WISH. They believe, somewhere in their unconscious mind, that they *deserve to die* because they believe they REALLY DID sin against God - that they really did kill Him. Sooner or later their own unconscious belief that they deserve to die is going to override all others and enforce their punishment.
The "inevitability" of death - this notion that everyone dies and there's no escape, is merely symptomatic of this deeply protected, hidden, secret sin, which everyone is carrying around in their mind. It's buried behind layers of denial and unconsciousness, but it's there. It makes people kill themselves! It ultimately is the ONLY reason, and justification, for why anyone would ever deserve to die, and why anyone would arrange for this to happen to them.
Jesus teaches us, ALL death is suicide. Regardless of how it happens or how long it takes or who does it to whom, it is all suicide. It is all because we have this belief in "real sin" in our mind somewhere. If it is unchecked and unhealed and unforgiven, death is likely going to result.
It is in a way very sad to think of this, but, billions of people keep destroying themselves because they don't realize they have hidden hates and secret sins. They believe they've gotten rid of God and ended up in this stupid world just to hate a while, wither and die. Jesus isn't joking when He says that. This is what most of us are doing here.
If you want eternal life, if you want to LIVE, you're going to have to weed out of your mind every ounce of a belief that you really sinned. Every part of the ego's thought system of death has to go. Every way that you separate out what applies to you from what applies to others, must end. While you continue to use ego and believe ego and keep separation alive, you are continuing to keep the murderous intent of sin against God. And it will justify your death.
I don't mean for this to be guilt inducing or frightening either. I don't mean to "make it real" by talking about it. But if we don't talk about it, people go through the illusory experience of dying, unnecessarily. God wants us to live! God wants us to recognize we are forgiven and DID NOT ACTUALLY KILL GOD. He wants us to see that we were just mistaken for believing we actually pulled this off. We did not really sin, it had no effects, and God is just fine. And he's happy with us, and wants us to be with him in love. He loves us.
For many people, this is no joke. Most will continue to choose to die because they don't believe they are worthy of living. Many will die because they give up the will to live. Many will die because they secretly think they deserve it. Many will die because they have not forgiven themselves for the belief in separation from God. It is an epidemic of suicide.
Then there are people "in the world" who commit what seem to be more obvious acts of murder. They kill people to symbolize what they did to God, then proceed to kill themselves because they can see no hope of escaping the wrath of sin. It is the same dynamic of suicide that all belief in sin produces.
This is not God's will. It is God's will that we have eternal life and never suffer and never die. It is God's will that we be forever happy and innocent and holy. It is God's will that we are immortal and invulnerable and can never be upset or hurt. It is God's will that we LIVE FOREVER. We deserve it, we are worthy of it, God wants it for us, and we need to want it for ourselves. This is important. We have to get rid of this belief in real sin. It is destroying us.
Ultimately this whole thing is illusion. No-one can die, nothing is really happening, and there is no sin. But if you don't want to keep having illusory experiences of death and hopelessness, then forgiveness is in order. "Forgiveness is the way out of hell for you." Recognizing that sin is not true is all it takes. You are not a murderer. You are the innocent child of God.