A genuine miracle played a decisive role in Pedro Arrupe’s decision to become a priest. He was a young medical student on pilgrimage to Lourdes. He noticed a young man twisted with polio in a wheelchair at Mass. At the consecration of the host, the man stood up, cured. Writes Arrupe:
Thanks to the special permission I had, I was later able to assist at the medical examinations of the young man. The Lord had truly cured him. There is no need to tell you what I felt and thought at that moment. I had come from the Faculty of Medicine in Madrid where I discovered so many professors (some truly renowned) and so many companions who had no faith and who always ridiculed miracles. At Lourdes, I had been an eyewitness of a true miracle worked by Jesus Christ in the Eucharist, by that same Jesus Christ who had, during the course of His life, cured so many who were ill and paralytic.
The whole account is here. [link no longer available]