Yoga - Prana and Breath Control

Yoga is made up of the words prana and yama. I always like to break the words down themselves because you get yama again from the first couple, that's right not to do or control. Prana means breath actual breath, but it also refers to the energy, the subtle energy that's controlled when we control our breath. It alludes to what we think of as spirit and Ruach and Numa.