Leonard Ravenhill emphasizes the transformative power of prayer, illustrating how Jesus made prayer a central part of His life and ministry. He argues that if Jesus, the Son of God, needed prayer, then so do we, especially in times of crisis. Ravenhill shares stories of individuals like Hannah and C.H. Spurgeon, who exemplified desperate prayer and reliance on God, highlighting that true prayer is a humble communication with God. He challenges the audience to seek revival through persistent prayer, asserting that prayer changes people, who in turn change circumstances. Ultimately, Ravenhill calls for a deeper commitment to prayer as a means of spiritual transformation and revival.