Sri Aurobindo next describes the development of what we might consider to be the true mind of thought, the “signature” state of the evolution of the Mind-Plane in Life and Matter. We move to a more rarified sphere where the primary focus of the Mind is on its own native activities, not fixated, as we have seen with the physical mind and the vital mind, on the world of Matter and Life.
“Above this level of vital mentality and yet more inly extended, is a mind-plane of pure thought and intelligence to which the things of the mental world are the most important realities; those who are under its influence, the philosopher, thinker, scientist, intellectual creator, the man of the idea, the man of the written or spoken word, the idealist and dreamer are the present mental being at his highest attained summit. This mental man has his life-part, his life of passions and desires and ambitions and life-hopes of all kinds and his lower sensational and physical existence, and this lower part can often equibalance or weigh down his nobler mental element so that, although it is the highest portion of him, it does not become dominant and formative in his whole nature: but this is not typical of him in his greatest development, for there the vital and physical are controlled and subjected by the thinking will and intelligence. The mental man cannot transform his nature, but he can control and harmonise it and lay on it the law of a mental ideal, impose a balance or a sublimating and refining influence, and give a high consistency to the multipersonal confusion and conflict or the summary patchwork of our divided and half-constructed being. He can be the observer and governor of his own mind and life, can consciously develop them and become to that extent a self-creator.”
Sri Aurobindo, The Life Divine, Book 2, Part 2, Chapter 18, The Evolutionary Process — Ascent and Integration