Jonah, the key to the Sistine Chapel?

«Jonah, vomited by the whale, represented in an extraordinary scurry, with his torso partially turned to the right, his arms bent, his head pulled back, his mouth wide open to shout» (Émile Zola)[1]. The gaze of those who enter the Sistine Chapel through the ceremonial door — the east door of the building, through which popes, cardinals and his entourage have always entered, and whose perspective was taken into account by Michelangelo when he co…