The “Mind” in the ordinary use of the word covers indiscriminately the whole consciousness, for man is a mental being and mentalises everything; but in the language of this yoga the words “mind” and “mental” are used to connote specially the part of the nature which has to do with cognition and intelligence, with ideas, with mental or thought perceptions, the reactions of thought to things, with the truly mental movements and formations, mental vision and will, etc., that are part of his intelligence.
— Sri Aurobindo, Letters on Yoga, p. 326
The mind [...] is not an instrument of knowledge. But it can use knowledge for action, to organise action. It is an instrument of organisation and formation, very powerful and very capable when it is well developed. [...] Then, there is another use. When one is in contact with one’s reason, with the rational centre of the intellect, the pure reason, it is a powerful control over all vital impulses. All that comes from the vital world can be very firmly controlled by it and used in a disciplined and organised action. But it must be at the service of something else—not work for its own satisfaction.
These are the two uses of the mind: it is a controlling force, an instrument of control, and it is a power of organisation. That is its true place.
— The Mother, MCW, Vol. 8, p. 189