Meditation discipline is a practice that involves focusing the mind on a particular object, thought, or activity to achieve a mentally clear and emotionally calm state. YOGA, ZEN, and Tai Chi are three popular forms of meditation discipline. YOGA is an ancient Indian practice that combines physical postures, breathing exercises, and meditation. ZEN is a form of Buddhism that emphasizes meditation and intuition rather than ritual and doctrine. Tai Chi is a Chinese martial art that combines slow, graceful movements with deep breathing and mental focus.