what is the what is the relationship between the mind and the body?
The relationship between mind and body is explained in great detail in Buddhaâs Tantric teachings. It is a relationship between two distinct entities, which for the duration of a life have become associated with each other but which can also exist separately. Buddha compared the mind to a bird and the body to a nest. Like a bird leaving one nest and flying to another, at death the mind leaves this body and seeks another body. Alternatively, mind and body are like a driver and a car, which affect each other but are obviously not the same entity.
Your body is being massaged but your mind also feels the relief. Also, when your mind is relaxed you body is relaxed too. e.g. after a nap. The connection between mind and body is at the level of physical sensations occurring on your body. According to Buddha, karma is nothing but our mental volition or sankharas.