As someone who once came extremely close to death and was unconscious for days after eventually receiving medical care, my take on death is that it's probably similar to what you're saying about going under for surgery. I'm somewhat neutral to mixed on having been revived, but I no longer fear death. I still have a fear of suffering and having painful final moments, but death itself seems peaceful if nothing else.

In terms of something happening after death, my only real thought on that is that it really troubles me that I came into existence in the first place and that I experience anything at all. I sometimes wonder if that was truly a one time thing or if it's something that could happen again.