Asana means pose or posture or seat. According to Patanjali’s Yoga Sutras, an asana is defined as the experience of “perfect firmness of body with steadiness of intelligence in the mind (shtira), and benevolence of the spirit (sukham). In practice our work is to understand and experience the asana to the maximum, without aggressiveness or self-harm (otherwise its not yoga).

“Asana brings steadiness, health and lightness of limb. A steady and pleasent posture produces mental equilibrium and prevents fickleness of mind. Asanas are not merely gymnastic exercises; they are postures … By practicing them one develops agility, balance, endurance and great vitality.

Asanas have evolved over the centuries so as to exercise every muscle, nerve and gland in the body. They secure a fine physique, which is strong and elastic without being muscle bound and they keep the body free from disease. They reduce fatigue and soothe the nerves. But their real importance lies in the way they train and discipline the mind… The yogi frees himself from physical disabilities and mental distractions by practicing Asana…. The yogi conquers the body by the practice of asanas and makes it a fit vehicle for the spirit.” From Light on the Yoga Sutras.