The Buddha taught that the body is the physical backbone of the mind. Relations between them are similar to the relationship between the glass and it contained water. If you put the glass on the edge of a table or on an uneven surface, the water, and possibly shed. But if you put the glass on a flat surface, the water in it will remain completely motionless.
Similarly, the best way to allow the mind to calm down is to take a stable pose. Wise Buddha gave instructions on how to align the body in a balanced way so that the mind was both relaxed and cheerful. Over the years, a balanced position became known as the Seven-Limb posture Vairochana - one of the manifestations of the Buddha, who represents the enlightened form.





