Why is it that the Holy Spirit is the topic of so few sermons from Christian pulpits today? Is it not time that the Bible and the Spirit of Prophecy were searched for God’s truth in this vital field? How can the church be fully armed with the “sword of the Spirit” when she does not rightly know what this weapon is, nor how to wield it if she had it? And all the while time is a wasting and all heaven waits for the “bride” to make herself ready. This book is dedicated to the exploration of all of God’s revealed truth concerning the personality and the work of the Holy Spirit. It is an attempt to make a little clearer the who and the what of the Third Person of the Godhead, our least-understood Ally and our most important Possession.