Mary was a member of his Christian fellowship group and she had muscular dystrophy and almost overnight she became completely blind. It shocked all of them... how could this happen? They were determined that this attack of the "enemy" would not stand since God worked everything for the good to those who loved him. The author firmly believed that Mary's suffering would be temporary. He believe God had given her this burden for a time so that her eventual healing would spark a revival on campus. Hundreds of souls would be saved as a result of this miracle.