To know who you are, see what you want

Following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

“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, and 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.”
~Ramaṇa Maharshi

Questioner (Q): Acharya Ji, please help me understand what it means to find the source of the mind and hold on to it. When a thought arises in the mind, it demands to be addressed. Otherwise, it keeps hanging and causes trouble. Even this question is coming from my mind and to get an answer, the mind is trying to understand. But that is not leading to the dissolution of the mind rather adding to mental activity. How then, to really understand? How is it different from the usual mental activity?