From what we have observed, from the real world. No theories or magic or god involved. Death is peaceful(to some extent), well it's nothing, we call it peaceful to be able to comprehend it while living. read more
But “peace” means for you lack of activity, then no, there is no peace after death. You are always active, in this life and after it, you always do something. Of course, to consider my answer, you will have to be convinced that life after death really exists, since I see that most of the answers here imply that there is nothing after death. read more
People who believe they have had near-death experiences have explained what it feels like on the question site Quora, describing feelings of bliss, peace and excitement. read more