Swami Satchidanand giving the First of Two Energy Enhancement Talk about Hatha Yoga and Meditation and explaining that every Yoga posture or Asana is a path to Enlightenment.
Originally the word Yoga meant Union with the Absolute or Enlightenment. He then talks about the Eight Limbs of Yoga by Patanjali - Raja Yoga - Yama, Niyama, Asana, Pranayama, Mudra, Bandha, Dharana, Dhyana, Samadhi.