Consciousness is already conscious. It is the unmanifested, the eternal. The universe, however, is only gradually becoming conscious. Consciousness itself is timeless and therefore does not evolve. It was never born and does not die. When consciousness becomes the manifested universe, it appears to be subject to time and to undergo an evolutionary process. No human mind is capable of comprehending fully the reason for this process. But we can glimpse it within ourselves and become a conscious participant in it.
Consciousness is the intelligence, the organizing principle behind the arising of form. Consciousness has been preparing forms for millions of years so it can express itself through them in the manifested.
Although the unmanifested realm of pure consciousness could be considered another dimension as awareness, inner space, Presence. How does it do that? Through the human form that becomes conscious and thus fulfils its destiny. The human form was created for this higher purpose, and millions of other forms prepared the ground for it.