I was thinking about death, the exact moment of death, and thought about the last sensation felt by a dying person.
I had a thought that the last affect you experience subjectively never goes away. That if you feel horrible at the moment of your death, subjectively that feeling never goes away.
That idea and feeling shook me and made me think of heaven and hell being abstractions of the last subjective affect that you are ”stuck” with.
I understand that this is nonsense, but it ties well together with abstract consepts about soul and afterlife and logic in a way that allowed my mind to create a model it, and feel all the horrible outcomes of that model.
The model felt plausible enough to trigger strong emotion.
It did not trigger anything long lasting - just a momentary feeling of terror.