Yoga is a spiritual practice that originated in ancient India. It involves eight limbs including physical postures, breathing exercises, meditation, and achieving union between the body, mind and spirit. The core of yoga practice is an eight-limbed path consisting of yamas (universal ethics), niyamas (personal observances), asanas (postures), pranayama (breathing), pratyahara (sense withdrawal), dharana (concentration), dhyana (meditation), and samadhi (blissful absorption in the divine). Surya namaskar (sun salutation) is a sequence of 12 yoga postures that provide cardiovascular benefits and can be done as a complete workout.