Some Teachings of Ramana Maharishi
People often ask how the mind is controlled. I say to them, 'Show me the mind and then you will know what to do.'
The fact is that the mind is only a bundle of thoughts. How can you extinguish it by the thought of doing so, or by a desire?
Your thoughts and desires are part and parcel of the mind. The mind is simply fattened by new thoughts rising up. Therefore it is foolish to attempt to kill the mind by means of the mind.
The only way of doing it is to find its source and hold on to it. The mind will then fade away of its own accord.
In deep sleep you are entirely free from thoughts, because the 'I-thought' is absent. The moment the 'I-thought' rises on waking, all other thoughts rush forth spontaneously.
The wisest thing for one to do is therefore to catch hold of this leading thought, the 'I-thought', and dissect it - who and what it is - giving thereby no chance to other thoughts to distract you.
Therein lies the true value of self-inquiry and its efficacy in mind control.
All that you need do is to find out the origin of the 'I-thought' and abide there. Your efforts can extend only thus far. Then the beyond will take care of itself.