The human individual, rooted in the mental consciousness, does not recognize that the action of the mind actually originates elsewhere and is thus, a derivative, not an originating action. Sense impressions awaken thoughts, which tie into any pre-existing memory basis, yet this is not the entirety of the mental process.
Sri Aurobindo observes: “…all the action of the mind is a derivation from the secret supermind, although we do not know this until we come to know our higher self, and draws from that source all it has of truth and value. All our thoughts, willings, feelings, sense representations have in them or at their roots an element of truth, which originates and sustains their existence, however in the actuality they may be perverted or false, and behind them a greater ungrasped truth, which if they could grasp it, would make them soon unified, harmonious and at least relatively complete. Actually, however, such truth as they have is diminished in scope, degraded into a lower movement, divided and falsified by fragmentation, afflicted with incompleteness, marred by perversion. Menal knowledge is not an integral but always a partial knowledge. It adds constantly detail to detail, but has a difficulty in relating them aright; its wholes too are not real but incomplete wholes which it tends to substitute for the more real and integral knowledge. And even if it arrived at a kind of integral knowledge, it would still be by a sort of putting together, a mental and intellectual arrangement, an artificial unity and not an essential and real oneness. If that were all, the mind might conceivably arrive at some kind of half reflection half translation of an integral knowledge, but the radical malady would still be that it would not be the real thing, but only at best an intellectual representation. That the mental truth must always be, an intellectual, emotional and sensational representation, not the direct truth, not truth itself in its body and essence.”
Sri Aurobindo, The Synthesis of Yoga, Part Four: The Yoga of Self-Perfection, Chapter 22, The Supramental Thought and Knowledge, pp. 796-797