Substance
the ground of being
-the source of all-
consciousness
the universal substance
sub- means underneath
stance- means to stand
-to stand underneath-
to understand is
-the substance of the universe-
consciousness
a silent perception
Peter Russell has much good info 'bout consciousness. Here is an article and a video.
From his website SCIENCE. CONSCIOUSNESS (AND DARE I SAY IT?) GOD
From his youtube channel: