Traditional qigong is settled.

When practicing qigong, you are in a state of concentration, and your eyes seem to see a large area.

This phenomenon is related to the frequency of brain waves when people dream. When you are deeply quiet, your brain waves are at a slow activity frequency, which is the same as dreaming to produce images. Your eyes seem to see a large area, and this is the scope of your aura. If the images outside the aura cannot be reflected in the brain, you will feel that everything is dark.

Your judgment is correct, and this is the function of the sea of consciousness.