John Sherrill's experience could be described as a "spiritual adventure"! His testimony proves, if further proof were needed, the real existence of God and His power operating through baptism in the Holy Spirit. With great intellectual honesty, John Sherrill speaks about baptism in the Holy Spirit, also carrying out a deep work of biblical exegesis on the relevant scriptural passages. The careful research on the modern Pentecostal movement and the considerations about our way of life that is renewed in the knowledge of Jesus Christ, the Lord, are very useful.