Meditation is a practice to achieve state of no mind. there are many forms of meditation, sitting walking folding clothes yoga - whatever quiets the mind from its constant chatter. some people have suddenly gone from busy mind to no mind. I think they are the lucky ones:-) if your question is more to mean what is the purpose, I would say no thing. being. no thoughts. it is not lack of consciousness, like being asleep or being hit on head. it is pure consciousness. it is only inside your body. it is not out there or up in clouds somewhere. this is where focus on breathing helps- takes you inside your body.