To many of us "Spirit" is a colourless and vague word. The Holy Spirit is a faceless enigma beyond the grasp of our understanding. Yet, He - not "it" - is the One responsible for applying salvation to believers.
In the last two days I have heard of an engagement and an imminent adoption. It struck me as I have been studying for an exam on the Holy Spirit and salvation that in spite of the fact that often doctrine courses can leave students in the clouds (or on occassion, at sea), marriage and adoption are exquisite shadows of a reality that the Spirit actualises.