Within the human system, the energy flows along 72,000 pathways called nadis. At the joints, the nadis meet and form nodes, making the joints storehouses of energy. Upa Yoga activates this energy and also lubricates the joints, creating an instant sense of alertness and liveliness. Upa Yoga essentially means “sub-yoga” or “pre-yoga”. Because of its many immediate and evident benefits, the word Upa Yoga in Indian languages is commonly used to denote “usefulness.” It is a good starting point for those who are new to yoga, and it can be used as a preparation for other yoga practices.