What can those periods when our more intense perceptions are in abeyance, and we are merely flat screens, indicate about mind and our relationship with the external world?

'nature, who engages in muddle and mystery, so that even now we know not why we go upstairs, or why we come down again, our most daily movements are like the passage of a ship on an unknown sea' Orlando, Virginia Woolf, 1928, page 52.

Going up to bed at night and back down in the morning is not the answer I require, but it is one. Still, think of all the apparently empty moments in between.