The fact is that the mind is only a bundle of thoughts. The mind is 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.
Ramana MaharshiCall it by any name, God, Self, the Heart, or the Seat of Consciousness, it is all the same.
Ramana MaharshiWhen one makes the mind stick to one thought, the mind becomes rock-steady and the energy is conserved.
Ramana MaharshiHow does one get rid of fear? Ramana: What is fear? It is only a thought. If there is anything besides the Self there is reason to fear. Who sees things separate from the Self? First the ego arises and sees objects as external. If the ego does not rise, the Self alone exists and there is nothing external. For anything external to oneself implies the existence of the seer within. Seeking it there will eliminate doubt and fear. Not only fear, all other thoughts centred round the ego will disappear along with it.
Ramana Maharshi