In one of his most important essays, the great twelfth-century Japanese Zen master Dogen writes, “Impermanence is itself Buddha Nature.” This seems quite different from the classical Buddhist notion of impermanence, which emphasizes the loss side of the loss-change-renewal equation. For Dogen, impermanence isn’t a problem to be overcome with diligent effort on the path. Impermanence is the path. Practice isn’t the way to cope with or overcome impermanence. It is the way to fully appreciate and live it.
Zoketsu Norman Fischer from The Best Buddhist Writing 2013