Divinatory arts, secret societies, and occult sciences: Esotericism plunges us into a universe of mysteries where knowledge become the stake of a real quest for spiritual initiation. Painters wishing to represent the esoteric arts are used to stage in their works a whole set of geometric symbols, tortuous labyrinths, stars illuminating the celestial vault, alchemists working on the transmutation of precious metals ... many painters have risked the representation of esotericism in art such as Giovanni Stadano, Sir Wiliam Fettes Douglas, or even Salvador Dali… Could you decipher them?