Anna Karina performed a miracle! She "transformed" Mary, in her appearance as "Consolatrix afflictorum" (that is, Consoler of the sad), in a fish!
This "image of [Mary's] Grace" comes from Kevelaer, which is, according to wikipedia "the best visited Catholic pilgrimage location within north-western Europe. More than 1 million pilgrims, mostly from Germany and the Netherlands, visit Kevelaer every year to honour the Virgin Mary." (retrieved, 02.07.2016, from https://en.wikipedia.org/wiki/Kevelaer)