The essence of life is that it's challenging. Sometimes it is sweet, and sometimes it is bitter. Sometimes your body tenses, and sometimes it relaxes or opens. Sometimes you have a headache, and sometimes you feel 100 percent healthy. From an awakened perspective, trying to tie up all the loose ends and finally get it together is death, because it involves rejecting a lot of your basic experience. There is something aggressive about that approach to life, trying to flatten out all the rough spots and imperfections into a nice smooth ride.
To be fully alive, fully human, and completely awake is to be continually in no-man's-land, to experience each moment as completely new and fresh. To live is to be willing to die over and over again. From the awakened point of view, that's life. Death is wanting to hold on to what you have and to have every experience confirm you and congratulate you and make you feel completely together. So even though we say the yama mara is fear of death, its actually fear of life."
(Pema Chodron, When Things Fall Apart)