Who is the Holy Spirit?What does He do for us? How can I get to know Him better? How can He help me live differently? How can I receive greater power for helping others? Does it strike you as odd that the Person of the Trinity closest to us is also the least understood by us? Is your constant Companion a mystery Guest, living in some undiscovered place on the inside, known only to you by blind faith? That's a great beginning, but there is so much...