Stilling The Mind
"The mind is like a monkey. If you are attacked by a monkey, which constantly bites and pinches you, you have to threaten the monkey. Then, each time it comes, if you strike it vehemently, eventually the monkey will feel that it is hopeless to try to bother you. You must always remain as vigilant as possible. When an undivine thought enters into your mind, immediately you will chase it away. If you are constantly vigilant, eventually these thoughts will give up and no longer come to disturb you.
The most important thing is practice. Today your mind acts like a monkey. It is knocking all the time at your heart's door and disturbing the poise of the heart. But as many times as the mind comes to you, just chase it away or deliberately place your conscious awareness on something else. If you allow it to distract you, it will only gain strength. You have to know that in this world everybody has pride, vanity and self-esteem. So if you keep your heart's door closed each time the mind comes, if you pay no attention to the mind, then after some time the mind will find it beneath its dignity to bother you.
- Sri Chinmoy
Meditation: Man-Perfection in God-Satisfaction, p. 62-63