It is based on the superstitious idea of ​​the ancient peoples about the sacredness of odd numbers, in particular, the three number, which was considered a symbol of harmony. So the ancients drank three times in honor of the Three Graces and spat three times to ward off witchcraft. They believed that the world was ruled by three gods: Jupiter, Neptune, Pluto, and the evil dog Cerberus was represented as having three heads. During sacrifices, the priests walked three times around the sacrifici...