from The Teachings of Bhagavan In His Own Words
D.: Why should Self-enquiry alone be considered the direct path to Realisation?
B.: Because every kind of path except Self-enquiry presupposes the retention of the mind as the instrument for following it, and cannot be followed without the mind. The ego may take different and more subtle forms at different stages of one's practice but it is never destroyed. The attempt to destroy the ego or the mind by methods other than Self-enquiry is like a thief turning policeman to catch the thief that is himself. Self-enquiry alone can reveal the truth that neither the ego nor the mind really exists and enable one to realise the pure, undifferentiated Being of the Self or the Absolute.
This statement that the mind is not used by the method of Self-enquiry was not always understood, and therefore Bhagavan, when asked, explained that it means that the mind is not taken for granted as a real entity but its very existence is questioned, and that this is the easiest way to dispel the illusion of its existence.
B.: To ask the mind to kill the mind is like making the thief the policeman. He will go with you and pretend to catch the thief, but nothing will be gained. So, you must turn inward and see where the mind rises from and then it will cease to exist. (In reference to this answer, Sri Thambi Thorai of Jaffna, who has been living as a sadhu in Pelakothu for over a year, asked me whether asking the mind to turn inward and seek its source is not also employing the mind. I put this doubt before Bhagavan.)
B.: Of course, we are employing the mind. It is well known and admitted that only with the help of the mind, can the mind be killed. But instead of setting about saying there is a mind and I want to kill it, you begin to seek its source, and then you find it does not exist at all. The mind turned outwards results in thoughts and objects. Turned inwards it becomes itself the Self.
It can be said that the mind ceases to exist or that it becomes transformed into the Self; the meaning is really the same. It does not mean that a person becomes mindless, like a stone, but that the Pure Consciousness of the Self is no longer confined within the narrow limits of an individualised mind and that he no longer sees through a glass darkly, but with clarity and radiant vision.