The Impersonal Power of the Holy Spirit

Father and Son are words that have a deep resonance with us. We've got some very visible evidence recorded in the scriptures about the person of both the Father and the Son, and how they relate to one another. But when we say Holy Spirit, or if we use the older language even more so, Holy Ghost, it seems something remote, distant, opaque about who he is. Perhaps it's not surprising then that we sometimes hear Christians refer to him as an it, not a person, but an impersonal force or power, just like the wind. I think these words are a kind of litmus test of our relationship to the Holy Spirit.