Clouds

The Cormographer Who Stole Lucifer's Dreams.
It is a known fact that Fra Mauro, who died in 1459 at a very old age, worked in a sort of map-making laboratory with his assistants in the convent of San Michele; in addition to the fabulous map of the world, it produced a cosmographic map commissioned directly by King Alfonso V of Portugal, and another magnificent work now conserved in the Apostolic Library of the Vatican.
How his monk could draw his maps without ever having travelled is history shrouded in mystery. The chronicles say that he used information brought to him by Venetian navigators, but popular legend says that he captured his information from dreams, not his own, but the Devil's dreams. The monk in fact had extraordinary ability to concentrate Lucifer's dreams over the island by projecting them onto the clouds when the sky was particularly overcast. Fra Mauro had discovered how to capture them and use them to learn about the far reaches of the world, which were still mostly uncharted. They represent the turmoil of the vision of the world held in that era, which Lucifer - in his dreams - had unchained. Captured on paper by the cosmographer monk who read their profiles and bright colours on the clouds, the moments of fury which preceded every thunderstorm may still be seen floating in the distance over the cemetery during the fiercest thunderstorms on summer nights.