The unconscious mind, moving like water, swirls, flows, boils and churns, tiding in and out, pulled back and forth by the moon.
It flows everywhere and into everything, composing every cell of the body, filling up and flowing out of us again.
Sometimes we can peer into that mind, that underground river, and see things moving in the water - all manner of objects and creatures and try to catch them with our nets. But they can never be fully known and are always changing.