Mental ecology, also called deep ecology, seeks to awaken our ability to listen. The entire universe and each being, as tiny as it might be, are filled with history. They can tell their story and deliver their message that speaks of the grandeur and majesty of creation. The mission of the human being, man and woman, is to decipher this message and be able to celebrate it. Mental ecology or deep ecology seeks to nourish those psychic energies that enhance the covenant of kinship between the human being and the universe. It arouses the shaman hidden inside each person. Like any shaman, each individual can enter into dialogue with the energies at work in the building of the cosmos over fifteen billion years, energies that manifest themselves in us in the form of intuitions, dreams, and visions, and by enchantment over nature.

Without a spiritual revolution it will be impossible to launch a new paradigm of connectedness. The new covenant finds its roots and the site where it is verified in the depth of the human mind. That is where the lost link that reconstitutes the chain of beings and the vast cosmic community begins to be refashioned. This link in the chain is anchored in the sacred and in God, alpha and omega of the principle of the self-organization of the universe. This is where all sense of connectedness is fostered and this is the permanent basis for the dignity of Earth.

—Leonardo Boff
Cry of the Earth, Cry of the Poor