The Moon is the card of intuition, dreams and the unconscious. The Moon provides light as a reflection of the Sun, yet this light is dim, uncertain, and only vaguely illuminates our path as we journey toward higher consciousness. The pool at the base of the card represents the subconscious mind and the crayfish that crawls out of the pool symbolises the early stages of consciousness unfolding. This creature also represents the often disturbing images that appear from our inner depths [...]. The path leads between two towers into the mountains in the distance, showing the way to the unconsciousness. [...]

Excerpt from: https://www.biddytarot.com/tarot-card-meanings/major-arcana/moon/