O milagre de Santo Inácio de Loyola

When Rubens painted this around 1617 for the Jesuits' grand new church in Antwerp, Ignatius of Loyola was not yet a saint. He had founded the Jesuit order but would only be canonised in 1622, and pictures like this, showing him driving demons out of the possessed, were part of the argument for his sainthood. It served as a high-altar piece and was swapped out with a companion showing Saint Francis Xavier, so the congregation saw one, then the other. Rubens lights Ignatius from above and packs the lower half with writhing, convulsing figures, the demons visibly leaving their bodies as he raises his hand.