A serious-looking knight, in full battle armor, seems to raise his cup in salute as he and his white horse stand on the banks of a wide, crystal-clear river. Fed by a rushing waterfall, the river spills over a towering, rocky cliff.
The Knight of Cups, like all of the court cards in his suit, is watery and emotional. He is gallant, graceful, and generous. He is imaginative—even visionary. More than anything, he is a romantic idealist who believes that beauty is truth, and truth is beauty. Unfortunately, the Knight of Cups is so romantic that he will fall in love with every beautiful woman who crosses his path. He will leave you with a long, lingering kiss on your doorstep, and he’ll promise to call. He’ll mean it, too—but once he’s back on his horse and another beautiful woman crosses his path, he’ll simply forget.
Traditionally, the appearance of the Knight of Cups in a Tarot reading would sometimes indicate a visit from a friend, who might even bring money.
Elementally speaking, the four Knights of the Tarot are all fiery. They simply combine the element of fire with the element of their own suit. In that regard, the Knight of Cups embodies the steamy combination of fire with water.
Astrologically, the four Knights of the Tarot are also associated with the four mutable signs of the Zodiac. The Knight of Cups represents the mutable water sign of Pisces, which makes him sensitive and introspective.
From Tall Dark Stranger: Tarot for Love & Romance, by Corrine Kenner