“Death is our friend precisely because it brings us into absolute and passionate presence with all that is here, that is natural, that is love,” Rilke wrote in contemplating the most difficult and rewarding existential art: befriending our own finitude. I have been sitting with Rilke, awash in the tidal waves of sorrow and love, in the wake of losing my beloved friend Emily Levine (October 23, 1944–February 3, 2019) — philosopher, comedian, universe-builder, beautiful soul — who made me…