The human mentality is tied to the ego-consciousness and thus, tends to use the standpoint of the individual as the filter for its process of perception, organization and knowing about the world, and the individual’s place in the world. Even the “objective” standpoint of the mental awareness, while ostensibly limiting the impact of the ego, still is based within the individual framework and thus, inevitably has a limited scope of understanding of the universal manifestation. Since the supermind experiences all of creation as part of the self, through unity, the knowledge of the supermind is one of identity rather than fragmentation and separation as seen by the mental filter.
Sri Aurobindo explores the difference between this human mental consciousness and that of the supramental consciousness. “The supermind sees everything in the self and its observation must therefore be subjectively objective and much nearer to, though not the same as the observation of our own internal movements regarded as an object of knowledge. It is not in the separatively personal self or by its power that it sees and therefore it has not to be on guard against the element of personal error: that interferes only while a mental substratum or environing atmosphere yet remains and can still throw in its influence or while the supermind is still acting by descent into the mind to change it. And the supramental method with error is to eliminate it, not by any other device, but by an increasing spontaneity of the supramental discrimination and a constant heightening of its own energy. The consciousness of supermind is a cosmic consciousness and it is in this self of universal consciousness, in which the individual knower lives and with which he is more or less closely united, that it holds before him the object of knowledge.”
Sri Aurobindo, The Synthesis of Yoga, Part Four: The Yoga of Self-Perfection, Chapter 23, The Supramental Instruments — Thought-process , pg. 825