One should control the mind by restraint of breath. Then it would, like a tethered animal.Cease to stay.—Maharishi Ramana.
Comments; Maharishi used to teach the method of self-inquiry which is Shaksi bhawa (Observation of the mind). But some people are not capable to do this method. For such person’s restraint of breath is helpful. In Buddhism it is called Vippasna, meaning watching the flow of breath. Just do it with regular flow of breath not deep breath. Our mind (thought) and breath comes from the same source of life of self. it will help like a tethered animal.