The Star is seventeen, clear hope; the Moon is eighteen, the stretch of dark that has to be crossed after it. A path starts at the water, passes a dog and a wolf, runs between two towers into the distance, lit only by moonlight, and a crayfish is climbing out of the pool. The mechanism: moonlight is reflected, and it makes everything look like something else — the dog like a wolf, the road like a dead end, a shadow like a person. Eighteen is nine doubled: the Hermit's solitary search, this time without the lamp.
Where you'll recognise it: the things you thought at 3 a.m. that seem absurd by day, unease about a situation you can't name, and stretches when your intuition is loud but you can't tell intuition from fear. This card is about the unconscious surfacing — the crayfish crawling out of the water is what you usually keep pressed down showing its head.
Running well, the Moon is the deepest state there is: dreams that land, work with something in it, contact with parts of yourself you don't usually reach. Stuck, its problem is taking moonlight for daylight — fear as premonition, illusion as insight, circling between the two towers and never getting through. The path does go through: after the Moon comes the Sun. This stretch just has to be walked, not skirted.