Nobody really knows what it's like to die. In the context of personal experience, an investigation into death would seem to be a dead-end.
However, Black Holes of Nothingness (BHNs) perforate normal experience. Most are unremarkable such as dreamless sleep, anesthetic blackout, and the nothingness in some kinds of meditation.
Since all BHNs are basically the same (nothing), maybe death is just another BHN. If so, we should be able to learn something about it by examining BHNs of the everyday kind using special first-person methods.
Reframed like that, death appears to be not a singularity at the end of life but rather, an ordinary event that repeats throughout experience.
This is volume five in the award-winning Discovering the Mind series.