If you practice yoga regularly, to the degree and level that is right for you, it will influence your entire body. It will benefit your joints and muscles, your nerves and internal organs, and your mental and spiritual well-being.
Literally translated, yoga means union. The ultimate goal of practicing yoga is to create a union of the body, the mind and the spirit. From this union, you are able to tap into the oneness that exists in each of us and which also exists in the world around us.