Hi Original Thinker.
Certainly, many aspects of this huge topic are very scary to me. Sometimes I think about what I heard about Yitzchok Avinu, I believe (if I am wrong, please correct me), who went from this world to being niftar into the next with the ease of one who has a coat on and then just takes it off, and that is how subtle the change was.
Rabbi Akiva Tatz talks in depth about this topic, and while I heed his advice and made a note of what the transition may be like after 120, iy”H, it is still something I dont like to think about for too long.