"Physis also, the arising of something from out of itself, is a bringing-forth, poiisis. Physis is indeed poiesis in the highest sense. For what presences by means of physis has the bursting open belonging
to bringing-forth, e.g., the bursting of a blossom into bloom, in itself (en heautöi)."

Bibliographic Reference: 

Martin Heidegger, Philosophical and political writings (New York ;;London: Continuum, 2003).