Another effective technique in developing a peaceful mind is the daily practice of silence. Everyone should insist upon not less than a quarter of an hour of absolute quiet every twenty-four hours. Go alone into the quietest place available to you and sit or lie down for fifteen minutes and practice the art of silence. Do not talk to anyone. Do not write. Do not read. Think as little as possible. Throw your mind into neutral. Conceive of your mind as quiescent, inactive. This will not be easy at first because thoughts are stirring up your mind, but practice will increase your efficiency. Conceive of your mind as the surface of a body of water and see how nearly quiet you can make it, so that there is not a ripple. When you have attained a quiescent state, then begin to listen for the deeper sounds of harmony and beauty and of God that are to be found in the essence of silence.

… a psychological system (was) at the heart of Buddhism … absolutely unknown in Western psychology. … I started to write about it, and the way it worked with the mind, the way it conceived of what you could do to transform the mind, … meditation was very much at the heart of that. … Western psychology did not understand that … meditation did transform the mind, and now we know, the brain. No one had ever heard of the word, neuroplasticity in the 1970s, … repeated experiences change the structure and function of the brain was implicit in Buddhist psychology and unknown in Western psychology. … you could transform the mind, to the point where, … your inner emotional state was not at the whim of external conditions, but was an ongoing, …equanimous state that was one of kindness. This was inconceivable. … I would say psychologists in the 2010s don’t think about it that much as whole.

One of my practices comes from an ancient Indian teacher. He taught that when you experience some tragic situation, think about it. If there’s no way to overcome the tragedy, then there is no use worrying too much. So I practice that. (The Dalai Lama was referring to the eighth-century Buddhist master Shantideva, who wrote, “If something can be done about the situation, what need is there for dejection? And if nothing can be done about it, what use is there for being dejected?”)

The point of Buddhist meditation is not to stop thinking, for … cultivation of insight clearly requires intelligent use of thought and discrimination. What needs to be stopped is conceptualisation that is compulsive, mechanical and unintelligent, that is, activity that is always fatiguing, usually pointless, and at times seriously harmful.

It's all about discipline - and having an inner calm. That's one of the main driving forces for me when I step into the ring - you can’t have a fight and lose your temper. You need to remain calm and focused when everything around you is in chaos. It's a similar thing for the buddhists - they remain calm and disciplined in the hurly burly of everyday life.

‘Try to make the mind stay with just a single Dhamma theme—its meditation word.’ Don’t get involved with other topics at that moment. If you let it think of the texts while practicing concentration, [the mind] won’t be willing to stick just with that practice. A great deal of extraneous knowledge will interfere, disrupting the mind until everything is a turmoil, and no stillness will result.

The method is to quiet the mind and, in order to do so, to concentrate on an aspiration for faith in the Divine Power, peace and calm in the mind, single-minded sincerity in the heart, and a conscious opening to the Light and Truth and Power.

Letters on Himself and the Ashram, p.817

First he must gain control over his thoughts, the progeny of the restless, unruly mind, hard to curb as the wind. (Bhagavad Gitâ, vi. 34). Steady, daily practice in meditation, in concentration, had begun to reduce this mental rebel to order ere he entered on the probationary Path, and the disciple now works with concentrated energy to complete the task, knowing that the great increase in thought power that will accompany his rapid growth will prove a danger both to others and to himself unless the developing force be thoroughly under his control. Better give a child dynamite as a plaything, than place the creative powers of thought in the hands of the selfish and ambitious. p. 407

People who practice mental concentration may inhibit the True Mind within themselves by being dependent on sensory perceptions, coarse states of mind, and restricted breathing. Before achieving mental purity, [such people may undertake] the constant practices of concentrating the mind and viewing the mind. Although they do so during all their activities, [such people] cannot achieve [mental] clarity and purity, nor illumine that mind which is the sources of all dharmas.

You can practise pranayama a little, but not much, otherwise the brain will get heated. If the mind becomes calm of itself, what is then the necessity of practising pranayama? The practise of pranayama and asana often brings occult powers, and occult powers lead one astray.

The fundamental effort in Buddhist practice is to develop a sufficient capacity in attention so that you can experience your own non-existence.

35. The mind can be trained to steadiness through those forms of concentration which have relation to the sense perceptions.

Because long-held internalized views and attitudes appear especially powerful in death, the daily practice should include body, speech, and mind, so that the teachings slide from the head to the heart as fast as possible. It is certain and a real gift that the Buddhist methods will help in both this life and afterward.

"Retraining your mind is the path to peace." While your mind is out for retraining, you get to relax in peace.