Those who have had near death experiences (NDEs) or spontaneous or deliberately induced out of body experiences (OBEs) often say they no longer have any fear of death because they "know they are more than their physical body." A good book on this subject is "Journeys Out of the Body" by Robert Monroe as well his two books after that (
https://libgen.is/search.php?req=Rob...e=1&column=def). There are also other books (like "Journey of Souls", "Destiny of Souls" and "Life Between Lives") on the overall subject of life after death by a hypnotherapist named Michael Newton who had 7,000 clients that he drew this material from (
https://libgen.is/search.php?req=Mic...e=1&column=def).