Deepak Chopra: That’s one school of thought, but not what I learned. I had my spiritual apprenticeship with the Shankara- charya school in India, and my immediate mentor was Maharishi Mahesh Yogi, who brought Transcendental Meditation to the West. Maharishi was a disciple in turn of the Shankaracharya. That tradition goes back to the ninth century sage Adi Shankara. Their interpretation always has been that the eight limbs of yoga are practiced simultaneously. In that way it is similar to the Eightfold Path in Buddhism. The eight limbs are Niyama, Yama, Asana, Pranayama, Pratyahara, Dharana, Dhyana, and Samadhi and are all actually combined into one discipline. Yama and Niyama are rules of social and personal conduct, so why not include them as things that you do? It’s about the internal shift in attitude that you have to make. Pratyahara and Pranayama are actually forms of Raja yoga, and therefore they are complementary to Asana. Dharana, Dhyana, and Samadhi are supposed to be the culmination of this practice, but all eight limbs are still part of your daily practice.
Wgm says: Even MMY says the same in his BG in the appendix on Yoga! "All limbs were meant to be practiced 'simultaneously", many meditators have this confused, mostly because MMY himself said one thing and wrote another, see for yourself. (Gita Appendix/Yoga)