Yoga Chikitsa, which means yoga therapy, realigns the spine, detoxifies the body, and builds strength, flexibility and stamina. The series of about 75 poses takes an hour and a half to two hours to complete, beginning with sun salutations (surya namaskara A and surya namaskara B) and moving on to standing poses, seated poses, inversions and backbends before relaxation.
The intermediate or second series is called Nadi Shodana, meaning nervous system purification. It cleanses and strengthens the nervous system and the subtle energy channels throughout the body. This series is only introduced when the primary series is strong. It follows the same progression (sun salutations, standing, sitting etc.) as the primary series, but introduces new poses and variations.
The four advanced series are called Sthira Bhaga, which means divine stability. Pattabhi Jois originally outlined two intensive advanced series, but later subdivided them into four series to make them accessible to more people. These series emphasize difficult arm balances and are only appropriate for extremely advanced students.
Mysore Style. Once students know the order of poses very well, they may often opt for self-led, or Mysore style practice. This is an opportunity for students to practice at their own pace and level of ability, but in the company of other students and with the encouragement and advice of a teacher, as needed.