If prayer is God’s great gift, it is one inseparable from the giver; who, after all, is His own great gift, since revelation is His Self-donation. He is actively with us, therefore, as we pray, and we exert His will in praying. And, on the other hand, prayer makes us to realize how far from God we were, i.e. it makes us realize our worst trouble and repair it. The outer need kindles the sense of the inner, and we find that the complete answer to prayer is the Answerer, and the hungry soul comes to itself in the fullness of Christ.
Prayer is the highest use to which speech can be put. It is the highest meaning that can be put into words. Indeed, it breaks through language and escapes into action. We could never be told of what passed in Christ’s mountain midnights. Words fail us in prayer oftener than anywhere else; and the Spirit must come in aid of our infirmity, set out our case to God, and give to us an unspoken freedom in prayer, the possession of our central soul, the reality of our inmost personality in organic contact with His.
Peter Taylor Forsyth, The Soul of Prayer