Yet this thoroughgoing absorption in the present is (as both Eastern and Western religious traditions tell us) as close as we mortals ever get to an experience of eternity. Boethius, the sixth-century Neoplatonist, said the goal of our spiritual striving was “to hold and possess the whole fullness of life in one moment, here and now, past and present and to come.” Likewise in the Eastern tradition: “Awakening to this present instant,” a Zen master has written, “we realize the infinite is in the finite of each instant.” Yet we can’t get there from here without first forgetting.