The term SEER'S DECK is a reference to the Tarot, a set of cards used for divination and fortune-telling. The Tarot is believed to have originated in the Middle Ages, and consists of 78 cards divided into two parts: the Major Arcana, which consists of 22 cards, and the Minor Arcana, which consists of 56 cards. The Tarot is used to gain insight into the past, present, and future, and can be used to explore personal issues and gain spiritual guidance.