Mystic's Board is a term used to refer to the Ouija board, which is a flat board marked with the letters of the alphabet, the numbers 0-9, and the words 'YES', 'NO', 'HELLO' and 'GOODBYE'. It is used as a tool for divination, or the practice of seeking knowledge of the future or the unknown by supernatural means. The board is used in conjunction with a planchette, a small heart-shaped piece of wood, plastic, or metal that is moved around the board by participants.