In an age that smirks at the mention of miracles, sin, angels, and demons, St. Pio of Pietrelchina has emerged as a figure of immense popularity, attracting fascination, veneration, and also emulation. Padre Pio, who once wrote in a letter, "I am a mystery to myself," is certainly a mystery to all who know of him. To those who moved beyond mere credulity, he became an inspiration to embrace the fullness of faith. Perhaps that is why his shrine in outlying San Giovanni Rotondo, Italy, is second only to the Vatican itself in annual number of pilgrims and why Italian Catholics now report to...