As the spirit is fed on the word of God, the body becomes less and less dependent on material needs...

As the spirit is fed on the word of God, the body becomes less and less dependent on material needs, and in some cases, holy people forget food, water, and sleep. But when the spirit is no longer fed with heavenly concepts like those of the Gospel, then people become completely material - all stomach and out-stretched hands -and concentrate on nothing else other than how to satisfy their senses by any means. - Metropolitan Augustinos of Florina