By mobilizing prana – accompanied with mindful movement – effortless, joyful expression is set into muscle memory. Cellular health aligns with thought and intention (the biology of belief) and its the reason yoga pays attention to mental outlook; for while stress is perceived in the mind, it is felt in the body. By moving in asana as an expression of gratitude, stress is perceived in the body but is not felt in the mind. This is the opposite effect from the normal experience of mind in stress. Yoga teaches us to be at ease in the midst of stress. This changes one’s response to everything.