A closeup reveals one of the markings to be a Star of David, as it is now called.
The markings on the house of Nostradamus include what would today be called a "Star of David." Because of its geometric symmetry, the hexagram has been a popular symbol in many cultures from earliest times. Anthropologists claim that the triangle pointing downward represents female sexuality, and the triangle pointing upward, male sexuality; thus, their combination symbolizes unity and harmony. In alchemy, the two triangles symbolize *"fire" and *"water"; together, they represent the reconciliation of opposites. Some medieval alchemists even borrowed the talmudic pun - ish mayim, fiery water, and shamayim , heaven - to demonstrate the interpenetration of the two realms. Because if this symbolism, the hexagram was even used occasionally as the emblem displayed above a brandy shop.