What do doctors think about miracle cures? A committee meets to clarify a case of unexpected and untreated recovery of a patient with a multiple metastasis. At the same time and in another place, the voices of prayers join the sound of the footsteps of the pilgrims who participate in the torchlight procession at the Lourdes Sanctuary, waiting for the blessing or miracle of the Virgin. How can science reinforce the belief in miracles? How does clerical power use tradition and innovation to bring as many people as possible closer to its discourse?