I believe the last 20 pages of this book are the closest anyone can get to understanding how dying is without actually dying. When thinking of death, rarely one thinks about what it is truly, deeply, unless they is close to it.

This books is an intense, profound, real exploration of the astonishing thoughts inside the head of a dying man.

I extracted a lot of references and I took a lot of notes (in comparison with my usual standard of no notes at all) on here (in Italian).