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

I love mountains. I feel that mountains are huge contemplatives. They are there and they are in the presence up to their necks and they are still in it and with it and within it. One of the lovely ways to pray is to take your body out into the landscape and to be still in it. Your body is made out of clay, so your body is actually a miniature landscape that has got up from the earth and now walking on the normal landscape.

Those who do contemplative retreats in hermitages are far from doing nothing, since they are constantly engaged in training their minds, but there is no ‘noise,’ no ‘waste’ to eliminate, no stress to cure, no chaos to reorganize. This means that there is less to repair during sleep and the sleep quality of meditators is deeper.

Someone inquired of a Hindu who had a great serenity and peace about him, no matter what pressures were put upon him, “How do you maintain that serenity and peace?” His answer: “I never leave my place of meditation.” Every morning he meditated for thirty minutes. Then in his mind and heart he never left it — he maintained the spirit of that place all during his public life and pressures.

Chant the name of God and sing his glories unceasingly; and keep holy company. Now and then one should visit holy men and devotees of God. If a man lives in the world and busies himself day and night with worldly duties and responsibilities, he cannot give his mind to God. So it's important to go into solitude from time to time, and think about God. When the plant is young, it should be fenced on all sides. Unless there's a fence around it, goats and cattle may eat it up. When you meditate, go into the solitude of a forest, or a quiet corner, and enter into the chamber of your heart. And always keep your power of discrimination awake. God alone is real, that is to say, eternal; everything else is unreal, because it will pass away. As you discriminate in this manner, let your mind give up its attachment to the fleeting objects of this world. … Attend to all your duties but keep your mind fixed on God. Wife, son, father, mother — live with all of them and serve them, as if they were your very own. But know in your heart of hearts that they are not your own.

Permanent concentration upon the Divine Names in the retreat leads to mystical awareness.

Keep close to Nature's heart … and break clear away, once in a while, and climb a mountain or spend a week in the woods. Wash your spirit clean.

When one cultivates strong concentration by means of tranquility or insight meditation, the mind is no longer distracted by thoughts and other hindrances. Such pure concentration, continuously focused on an object for either tranquility or insight, is considered mental purification. A mind associated with such concentration is also purified of hindrances due to the power of the concentration.

One cannot possibly understand the teaching of the saints unless one has a pure mind and is trying to imitate their life. Anyone who wants to look at sunlight naturally wipes his eye clear first, in order to make, at any rate, some approximation to the purity of that on which he looks; and a person wishing to see a city or country goes to the place in order to do so. Similarly, anyone who wishes to understand the mind of the sacred writers must first cleanse his own life, and approach the saints by copying their deeds. Thus united to them in the fellowship of life, he will both understand the things revealed to them by God and, thenceforth escaping the peril that threatens sinners in the judgment, will receive that which is laid up for the saints in the kingdom of heaven.

When the five senses and the mind are stilled, when the reasoning intellect rests in silence, then begins the highest path. — the Katha Upanishad

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.

So, rather than stay near the people and things that are liable to arouse your attachment and resentment, go to a completely unknown place where there is nothing that will engender negative emotions. Your mind will not be disturbed, and you will be able to devote your time and energy to the practice of Dharma.

Practise meditation, and by and by your mind will be so calm and fixed that you will find it hard to keep away from meditation.

The spiritual space we’re trying to find and maintain in meditation practice is the sacred place in each of us.