They say meditation is the practice of death. Allowing all the sense gates to relax does seem as a preparation for dropping body and mind physically, euphemistic way of calling death. I would consider that the ultimate goal is to avoid leaving too much homework for then. At some point, karma, genetics, experience, luck have played their cards as you withdrew them for the opportunities emerging at each and one of the presents moments that we then compile and call "existence".
Is this the deathless or hints of this? This calm abiding. The calming and serene existence even amidst the most disturbing and never-racking morning?