13. Prana (life force), breath, koshas (subtle bodies, sheaths) - Practical Kriya Yoga

CSA Senior Minister Ron Lindahn discusses the movement of life force (prana) in the subtle channels (nadis), and four of the five koshas, or bodies: food body (annamayakosha), energy body (pranamayakosha), mental body (manomayakosha), and intellect body (vijnanamayakosha).