Nature is crude and erotic, chaotic and profuse, rampant and zealous, brutal and violent, uncontrollable despite our best efforts, and completely uninhibited. Small wonder the natural world terrifies many people and also embarrasses the prim puritans among us. But most people find nature restorative, cleansing, nourishing in a deeply personal way. To have peak experiences, mystics, prophets, and naturalists have traveled into the wilderness.

Diane Ackerman, Deep Play