Imagination is a tree. It has the integrative virtues of a tree. It is root and boughs. It lives between earth and sky. It lives in the earth and the wind. The imagined tree imperceptibly becomes a cosmological tree, the tree which epitomises a universe, which makes a universe.
On poetic imagination and reverie: selections from the works of Gaston Bachelard (ed. Bobbs-Merrill Company, 1971)