Established in my thinking is that this body, with its intelligent brain, beautiful mind, and Core-spirit, alive and well, has a symbiotic relationship with a Core-being. One is temporal, will last up to 100 years or so. The other is not of this world and does not "die" when the body dies. To say that he is eternal is not appropriate. His world is not relative to time. What he does, where he goes when the body dies, is not known and will not be the subject of speculation. He does not, however, cease to exist with the demise of the former.
There is no escaping the fact that the two co-exist for a long time, and share experiences. Some are new and some are places and people revisited from Core-being's past. Both pursue goals, aims, that, for this one, eventually became compatible, and the relationship is mutually constructive.
The mind uses imagination and reasoning to set goals as needs are perceived and satisfied. When, in the course of events, those goals are antithetical with the objectives of Core-being, he removes himself from the field and the well-being of the body is put in jeopardy until things are again put in order. This was the case several times during this lifetime. Now, and for the past approximately 40 years, the two have been compatible. This could be the reason for insights that are experienced and recorded. Core-being has opened the kimono from time to time.
During a lifetime, the thinking that takes place, of all kinds, acts as food, nourishment, and the more of it there is, the better. Like bodily food, the quality, quantity, and content of it is important, and it is entirely possible that Core-being influences the selection of the subject of such thinking. One of these insights may be the following understanding of what happens upon the death of the body.
At the time of death, all the physical systems of the body stop functioning. This includes the mind as well as all the organs that support life. The brain dies and that means the memories and impressions, the knowledge, and the skills acquired during the lifetime, and stored therein, are lost. Core-being, however continues his quest in pursuit of his aim, whatever that may be.
Those activities, of the combined being, that were instigated by Core-being may produce memories that are shared. It is these, now colored by the lifetime just finished, that are carried on to the next inhabitation of a body. Thus, the next "host" may experience deja vu, as has this one from time to time.
At death, however, the body ceases to function. To say it doesn't exist anymore isn't true, the dead body is there and slowly returns to the molecular compounds that, if allowed, go back into "circulation." When it dies, all of the experiences it had are likewise ended. Only those recorded as images and words that can be recalled by the living, or in museums, libraries, and personal collections, remain. The playwright of Carousel, the Musical, put it succinctly. As long as there is one person who remembers, it isn't over, the memory lives on. Core-being, however, continues his spiritual existence and his quest.
(Later)
As difficult as it is, there is another possibility, that the body, including the brain, of course, is a vehicle for spiritual entities to use in achieving aim. This would mean that there is no single core being but any number of them that work to achieve physical aim utilizing. the physical being. It then follows that when this body dies, that may be it, the end of it.
Then there is the middle-ground where there is a "host" core-being who acquires some attributes of the being due to the long association with him but allows others to come in on occasion to experience or accomplish a specific aim. I like this one because it allows the possibility of continuity. But it is always true that we don't know.
