You cannot point to the background consciousness by using a descriptive term - such a term being necessarily somewhat metaphysical, as eternal, omnipresent, or negatively, spaceless, timeless, etc. The background consciousness has no attributes at all, not because it is eminently transcendent, but because it is the background to every attribute or attribution. It is not some glorified nothing or emptiness either. look instead for the unacknowledged common element in everything that can be thought or pointed to, and it's precisely not that.