Mystical Secrets is a term that refers to the hidden knowledge of the occult, such as tarot cards, astrology, and other forms of divination. The term can also refer to the secrets of alchemy, magic, and other esoteric practices. The crossword solution for Mystical Secrets is ARCANA, which is a Latin word meaning 'secret knowledge'. This term is often used to refer to the hidden knowledge of the occult, and it is also used to describe the secrets of alchemy and magic.