What is so exciting about the suffering that another part of ME might experience?
This is divided perception. If one part of YOU suffers while another part of YOU rejoices, then what do YOU feel as a whole?
Everything, but something predominates.
Exactly. Therefore, the next task is to balance YOURSELF as a whole so that YOUR experience is pure, meaning that nothing dominates within it.
Can I ask you a question on behalf of those who read our conversations? Can the Higher Self later refuse to integrate the part that was incarnated if it "dislikes" what happened to that part and doesn't want to take it back?
You are again reasoning in human terms. "Like" is a human concept. What does "like" mean? Your human definition depends on many factors, including externally imposed paradigms and moral norms. For instance, do you like it when people walk around naked in the street? No, because you were taught that a naked body is shameful. Many more examples could be given. But there is another meaning. What could your Collective Soul possibly "dislike"?
Well, for example, the experience of killing or the experience of suffering.
Where can your Collective Soul put a part of itself? Everything happens through it and within it. Your Collective Soul, or Higher Self, has endowed you with free will according to the laws of the universe. Free will to choose the experience of manifesting reality. If a child chooses to paint with black colors, would you forbid it? Would you reject the child? We have already talked about this. Black paint allows you to draw outlines, and without it, the boundaries of images would be blurred. Duality allows forms to manifest more clearly. Therefore, the Collective Soul cannot accept or reject something because it is everything.
But we are told that all experiences are collected, analyzed, and some of the negative experiences are either destroyed or overwritten.
Nothing can be destroyed, only transformed. But the latter statement is akin to, say, removing shadows and outlines from a painting and cleaning it of dark colors. That would no longer be a complete perception, do you understand? It's about something entirely different. When an equal amount of all possible experiences is accumulated, the perception becomes clearer because everything is balanced. Therefore, nothing is erased or overwritten. Everything is simply balanced.