The Cups of the Minor Arcana

The Cups symbolizes emotions, love, and spiritualism.  Human emotions flow like water; it moves from one state to the next.  They have the ability to fill any vessel.  In astrology; Pisces, Cancer, and Scorpio are represented by water.  Thus these are the signs of the Cup.  Many water signs are able to be calm, but many are prone to waves of emotion.

Additional fators

Animals of the Cup: water fairy and man (Apocalypse).
Season: Autumn