This inner world is truly infinite, in no way poorer than the outer one. Man lives in two worlds.

— Carl Gustav Jung

Tous les changements, même les plus souhaités ont leur mélancolie, car ce que nous quittons, c'est une partie de nous-mêmes ; il faut mourir à une vie pour entrer dans une autre.

All changes, even the most longed for, have their melancholy; for what we leave behind us is a part of ourselves; we must die to one life before we can enter another.

—  Anatole France, Le Crime de Sylvestre Bonnard

The spiritual journey does not consist of arriving at a new destination where a person gains what he did not have, or becomes what he is not. It consists in the dissipation of one's own ignorance concerning oneself and life, and the gradual growth of that understanding which begins the spiritual awakening. The finding of God is a coming to one’s self.

— Aldous Huxley

Man must be made conscious of his origin as a child of Nature. Brought into a right relationship with the wilderness he would see that he was not a separate entity endowed with a divine right to subdue his fellow creatures and destroy the common heritage, but rather an integral part of a harmonious whole. He would see that his appropriation of earth's resources beyond his personal needs would only bring imbalance and beget ultimate loss and poverty for all.

— John Muir

But if you want to find out who you are before your father and mother conceived you, who you really are, you almost have to go off by yourself. And go into the forest and stop talking even stop thinking words. And be absolutely alone. And listen to the great silences. And then if you’re lucky, you recover from the illusion that you’re just a little me...

—  Alan Watts

We flatter ourselves in premeditating the long, long journey we are going to take in order to find G•D, the giddy heights of spiritual progress we are going to scale, and all the time are unaware of the truth that "God is nearer to us than we are to ourselves." We are like birds flying in quest of the air, or men with lighted candles searching through the darkness for fire.

—  Alan W. Watts, Behold the Spirit: A Study in the Necessity of Mystical Religion