Here are a few words from Pope Benedict in regards to the Holy Spirit
"The Holy Spirit continues today to act with power in the Church, and the fruits of the Spirit are abundant in the measure in which we are ready to open up to this power that makes all things new.
For this reason it is important that each one of us know the Spirit, and establish a relationship with Him, and allow ourselves to be guided by Him…
Yes, the Holy Spirit, the Spirit of love of the Father and of the Son, is the source of life that makes us holy, "because God's love has been poured into our hearts through the Holy Spirit which has been given to us."
Nevertheless, it is not enough to know the Spirit; we must welcome Him as the guide of our souls, as the "Teacher of the interior life" who introduces us to the Mystery of the Trinity, because he alone can open us up to faith and allow us to live it each day to the full.
The Spirit impels us forward toward others, enkindles in us the fire of love, makes us missionaries of God's charity.
It is precisely the presence of the Spirit within us that confirms, constitutes, and builds our person on the very Person of Jesus crucified and risen."