To know form or manifestation, consciousness must focus its knowing or attention in a particular direction. For a specific object – a thought, image, feeling, sensation or perception – to come into the field of experience, consciousness must contract within itself, focusing and thus limiting its knowing in the form of attention. As such, attention brings form into existence out of the formless field of infinite consciousness.
This directing of its attention necessarily involves the exclusion, ignoring or forgetting of everything that is outside its focal field, just as your focusing on these words at present necessarily excludes numerous other experiences, which are, as a result, scattered at the periphery of your field of experience. For instance, the tingling sensation at the tips of your fingers didn’t come into existence the moment you read these words. It was there all along, but eclipsed by your interest in these words.
Rupert Spira, The Nature of Consciousness: Essays on the Unity of Mind and Matter.