Pentecostal pastor Caj Didigu comes from Nigeria. He was baptised after participating in a crusade where he was given a Bible, a notebook and a pen. However, his eyes were not good. He could not read the Bible, but he could pray, "Open my eyes." They opened. No doctor. No glasses. Having experienced that healing, he began to study the Word of God and wrote numerous tracts which became his book, "Mystery of Suffering." He currently pastors a church in the United States.