The daily rule for dietary discipline is never to eat to the point of fullness. The daily rule for sexual discipline is never to make love to the point of emptiness. Appetite should remain after all vital activities. Otherwise vital energy enervates, toxifies, isolates, and kills the body and mind.
Avoid excess or extremes. These create imbalance and enervation and toxicity. Do what maintains vitality and do it constantly. Feel to Infinity as the whole body. Relax profoundly under all conditions. Do not think or recoil (emotionally or physically) as a chronic activity. Learn to retain the vital force, especially in sexuality, and pervade the whole body with it. Learn to reverse the current of life in order to refresh and conserve the whole body.
-- Bubba Free John, from The Eating Gorilla Comes in Peace