The Spirit helps us pray. Without the feelings and words from the Spirit it is really hard to pray. Where is an easy place to get Spirit words? The Bible is in-spirited by God. So the words in the Bible turned into prayer are wonderful prayer words. And those words from the Bible are full of Spirit.
Someone once said that Prayer is an impossible task without the Holy Spirit.
2 Timothy 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
Romans 8:26 Likewise the Spirit also helpeth our infirmities:for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered.