Humanity may destroy the possibilities for life on earth unless the freedom and power that we have acquired are channeled in new creative directions by a spiritual awareness and moral commitment that transcend nationalism, racism, sexism, religious sectarianism, anthropocentrism, and the dualism between human culture and nature. This is the great issue for the 1990s and the twenty-first century.

Trees are extraordinary revelations of the spirit in nature. And, given the multitude of ways that trees and their products benefit and enrich human culture, they are an especially appropriate symbol of the interdependence of spirit and nature.

Humanity may destroy the possibilities for life on earth unless the freedom and power that we have acquired are channeled in new creative directions by a spiritual awareness and moral commitment that transcend nationalism, racism, sexism, religious sectarianism, anthropocentrism, and the dualism between human culture and nature. This is the great issue for the 1990s and the twenty-first century.