Tony Evans leads readers on a journey through the eyes of the disciples, revealing how God's gift of the Holy Spirit turned them from quivering cowards into bold martyrs who built His church and changed the world. In the same way, the unchanging power of the Spirit can ignite a fire in readers' lives today -- transforming them from sleepwalkers into wide-awake witnesses for Him. Dr. Evans shows how the power of the Spirit brings wisdom, freedom, and joy to the Christian -- as well as glory to God's kingdom -- and how holy habits can keep readers plugged in to the eternal source of spiritual power.