For it is not to a man that you are praying, before whom you can repeat a well- composed speech: it is to Him who is Spirit that you are directing the movements of your prayer. You should pray therefore in spirit, seeing that He is Spirit.
No special place or vocal utterance is required for someone who prays in fullness to God. Our Lord said, 'The hour is coming when you will not be worshiping the Father in this mountain or in Jerusalem' (John 4:21); and again, to show that no special place was required, He also taught that those who worship the Father should 'worship Him in spirit and in truth' (John 4:23); and in the course of His instructing us why we should pray thus He said, 'For God is a Spirit' (John 4:24), and He should be praised spiritually, in the spirit. Paul too tells us about this spiritual prayer and psalmody which we should employ: 'What then shall I do?', he says, 'I will pray in spirit and in mind, then, that he says that one should pray and sing to God; he does not say anything at all about the tongue. The reason is that this spiritual prayer is more interior than the tongue, more deeply interiorized than anything on the lips, more interiorized than any words, and beyond vocal song. When someone prays this kind of prayer he has sunk deeper than all speech, and he stands where spiritual beings