Holy Spirit
From RationalWiki
The Holy Spirit, sometimes referred to as the Holy Ghost, is the Third Part of the Three-in-One Trinity (not to be confused with the hot dominatrix from the Matrix) as featured in the popular "Christian" novels and miniseries, The Bible.
Despite being One Third of the Big Man Himself, It doesn't really seem to do much of Anything.
The other Two Thirds are "God the Father" and "God the Sun Son". This Third is probably the dead part, or, perhaps, The Moon, as featured in many American "coming of age" movies, and late drummer for The Who.
For some hereto unknown reason, lots of people care so much about the Holy Spirit and who he really is (I'm betting on Tom Baker, myself) that lots of blood has been shed. For a Ghost, he sure isn't a Friendly One.
[edit] The unforgivable sin
According to Matthew chapter 12 and Mark chapter 3, you can diss the Father and the Son and it will be forgiven you, but if you blaspheme the Holy Spirit that's all she wrote. Your fate is sealed just like Fredo Corleone in Godfather II when he fingered Michael for Johnny Ola and Hyman Roth. It will never be forgiven you.

