The compass point on the face of the depth is the location of a gravitational singularity. It's refered to as the foundation(s) of the earth. The circle that the compass metaphorically draws is the location of the firmament (heaven).
Synchronicity
The Core Accretion Model
They key to understanding the inception of gravity as the creative act of the second day is the synchronicity between stretching out the heavens and establishing the foundations of the Earth. One command did both.