From the Early Christians to Christopher Nolan. What if the famous Magic Square Sator, engraved two millenia ago on the walls of Pompeii shortly before the eruption of Vesuvius, attributed to the Early Christians, and the inspiration for Christopher Nolan's film Tenet, released in 2020, had been announcing the troubled and decisive times we are living? Sator, Arepo, Tenet, Opera, Rotas: a 25 letters mandala of which numerous versions dot ancient, medieval or modern Europe, and a two thousand years old mystery. Like a living heart where ancient traditions and religions converge with contemporary discoveries in physics, such as the reversibility of Time and the question of Artificial Intelligence, the Magic Square takes us through the arcane of the Tarot, Gnosis, Hebrew Wisdom and their links to Egypt, Christian Mysticism and the Renaissance. It also allows us to decipher for the first time the work of Christopher Nolan, also director of The Prestige, Batman, Interstellar, Inception and Oppenheimer. In the center of the Sator Square, a cross is formed by Tenet, the name of the director of the CIA at the time of September 11, 2001. Space and Time, Eternity, the destiny of Human kind, its quest for freedom are simultaneously hidden and revealed in the Sator Square, as well as C.G.Jung's necessary reconciliation of the opposites at the crossing point between the Pisces era and the Aquarian era we are encountering. "We live in a twilight World" is the device of Tenet. But the Sator Square also announced us the dawn of a new one.