Prayer is a deep spiritual mystery.

Mutual communication with God is going on far beneath the surface of our lives.

Not only do we often not know what to pray, we often know not what we are praying.

This is not said that we might disengage our minds, but that, with engagement, we might also release our spirits to commune with the Holy Spirit who knows, overcomes, and even uses our weaknesses in prayer even as He does in our outward lives.