Mandorla [mænˈdɔːlə]. From Italian: lit. almond, and from Late Latin amandula. In the Medieval Age it was known as vescia piscis. The mandorla, an almond-shaped aureola formed by two overlapping circles, is found in the religious art and architecture of many world traditions. In Christian iconography the mandorla is commonly associated with Christ or with the Mother of God. It is found in Buddhism and Hinduism, whose traditions run parallel to, and predate, Christianity, and also later in the symbology of Free Masonry. In all traditions the shape has its root in sacred geometry. The centre of each circle resides on the radius of the other, where the width of the middle of its horizontal plane is equal to the radius of each circle. Circumferences are produced along each arc. At once, the arcs extend outwardly and return in order to complete themselves, arcs whose imaginal bodies represent both emanation and convergence—a coming together, a growing and unity.