Asana, Pranayama, and Pratyahara
The third limb of Ashtanga Yoga is Asana, or yoga postures. This is the physical form of yoga that we are used to seeing. It helps us to attain stillness in both mind and body. The poses create strength and flexibility.
The fourth limb is Pranayama, or breath control. With these breathing exercises we can achieve a balanced state of mind. These are many different exercises that work to invigorate the system and calm the mind.
The fifth limb is Pratyahara, or controlling the senses. This is practicing detachment from the distractions of life.