Travelers at sea take soundings to measure the depth of the water through which they move. This kind of deep listening is necessary if they are to safely navigate treacherous waters. This is what we do as well, whenever we quiet ourselves and go to that inner place where there is enough silence for the words to resound.
You are free before the sun of the day, and free before the stars of the night: And you are free when there is no sun and no moon and no star. You are ever free when you close your eyes upon all that is.