The next stage or level of mind obtains more independence and freedom from the limitations of the physical and vital levels of manifestation and their characteristic actions. This is the realm of the pure mentality. In this level, the mind is able to act with a force and energy consistent with its not being pulled down by the physical instruments. We see here direct action of mind on mind, direct communication and influence, the sense of a mental impact and the ability to communicate directly without the instrumentalities of the physical senses and nervous system. This pure mental action is reflective, and acts as the pure thinker. In the furthest reaches of human mental development, we see something close to this type of pure mental action and we feel the mental influence of those individuals who are capable of harnessing the power of mind into a powerful and more direct action.
While this action is clearly more precise, more powerful and less vitiated by the weaknesses of the vital and physical worlds, it is still not the action of the Supermind, and suffers from the limitations and errors brought about by the veil of ignorance that continues to center the mental action around the separate individuality and does not have an actual and persistent sense of the Oneness and Unity. It still sees things from the sense of “me” and “other”, and this framework therefore, despite its clear and higher action, predisposes it to error and limitation.
reference: Sri Aurobindo, The Life Divine, Chapter 18, Mind and Supermind