The cloak worn by St. Juan Diego Cuauhtlatoatzin was made from rough cactus materials from central Mexico, and it should have deteriorated after 15-30 years.But this 'tilma' remains intact, and its mysterious image of the Virgin Mary has not faded since December 1531, when Juan Diego, an Indigenous peasant, reported a series of Marian encounters. The framed cloak is displayed behind the ...