How God is involved when we pray...

I really like how C.S. Lewis describes what's going on when we pray...

An ordinary simple Christian kneels down to say his prayers. He is trying to get into touch with God. But if he is a Christian he knows that what is prompting him to pray is also God: God, so to speak, inside him. But he also knows that all his real knowledge of God comes through Christ, the Man who was God—that Christ is standing beside him, helping him to pray, praying for him. You see what is happening. God is the thing to which he is praying—the goal he is trying to reach. God is also the thing inside him which is pushing him on—the motive power. God is also the road or bridge along which he is being pushed to that goal. So that the whole threefold life of the three-personal Being is actually going on in that ordinary little bed- room where an ordinary man is saying his prayers. The man is being caught up into the higher kinds of life—what I called Zoe or spiritual life: he is being pulled into God, by God, while still remaining himself.
From Mere Christianity

Prayer, Meditation and Temptation

Luther proposed and evangelical pattern of spirituality as reception rather than self-promotion. This involves three things: prayer, meditation, and temptation. All three revolve around ongoing, faithful attention to God's Word. The order of the list is significant, for unlike that traditional pattern of devotion, the spiritual life begins and ends here on earth. These three terms describe the life of faith as a cycle that begins with prayer for the gift of the Holy Spirit, concentrates on the reception of the Holy Spirit through meditation on God's Word, and results in spiritual attack. This, in turn, leads a person back to further prayer and intensified meditation. Luther, therefore, does not envisage the spiritual life as a process of self-development, but as a process of reception from the triune God. This process of reception turns proud, self-sufficient individuals into humble beggars before God.

Grace Upon Grace: p. 16