Thom wrote a nice post about how ex-Pentecostals are sort of wary about today's feast day, understandably so. I'm sort of wary of the Holy Spirit myself. In many churches - but especially Mormonism in which I was raised - emotional responses are generated (even manipulated) and subsequently the participants are told that that is the Holy Spirit. Ours is no exception, because "smells and bells" can be a replacement "high" for repetitive jam sessions at a strip-mall Assemblies of God congregation. This is a dangerous error to make, because once the believer's "religious high" wears off (as it invariably does) he or she must seek ever-increasing forms of religio-emotional satisfaction, whether that means upping the amount of incense in the thurible or rolling around on the floor and crying.
In my experience, the Holy Spirit often works absent of emotionally charged experiences, and his presence can only be observed in retrospect. I can look back at times in my life when "the Spirit" guided my path with an unseen - perhaps even painful - hand. I did not recognize them until much later. God tells Moses that God can only show God's backside to mortals, that is, "where God has already been." In other words, hindsight is 20/20, right?
I didn't want to go to church today, and was generally grouchy and judgmental of everything and everyone while there. So many days I "do not know how to pray as [I] ought" but mercifully the Spirit intercedes with "inexpressible groanings." I like that. To know that we are saved by our hope of salvation. Not our imperfect belief.
"O God, from whom all good doth come: Grant that by thy inspiration we may think those things that are right, and by thy merciful guiding may perform the same; through Jesus Christ our Lord, who liveth and reigneth with thee and the Holy Spirit, one God, forever and ever. Amen."