"When the spiritual needs are met, they teach a person to harmonize with those needs the satisfaction of the other needs, so that neither the needs of the intellect nor the needs of the body interfere with the spiritual life, but, instead, aid it. Then within a person is established complete harmony of all motions and revelations of his life. There is a harmony of thoughts, feelings, desires, undertakings, relationships, pleasures. And this is Paradise!

Contrary to this, when the spirit is not satisfied, and this one thing needful is forgotten, then each of these other needs runs off in a different direction, each one demands fulfillment of its own need, and their muddle and cry, like noise at a bazaar, deafen the poor person, and he runs around like a madman trying to satisfy them. But he never has peace, because when one need is being satisfied, the others are not, and, not considering themselves to be inferior to that need which is being honored with fulfillment, persistently demand their own satisfaction, just as children make demands of their mother when she is feeding one child, and the other five are crying."

Theophan the Recluse. (2003). The Spiritual Life. Arizona: St. Paisius Serbian Orthodox Monastery.