It is well known that the number seven holds something magical. It is a symbol of hope, a bearer of good fortune, and in the Christian religion, it represents perfection and completeness: seven are the days of creation, seven the gifts of the Holy Spirit, and seven the beatitudes.

A number filled with spirituality, it is associated with intellect and knowledge, with the search for truth and with luck. The same is true in the Jewish religion, where the menorah, the Jewish candelabrum, has seven branches, and seven are the circuits of the Ark of the Covenant. The number also carried great significance in medieval esotericism, and in China, it is the lucky number par excellence, especially concerning love. On the seventh day of the seventh month of the Chinese lunar calendar, the festival of lovers is celebrated.