Encouragement for the weak...

"A Christian complains he cannot pray. 'Oh, I am troubled with so many distracting thoughts, and never more than now!' But has he put into your heart a desire to pray? Then he will hear the desires of his own Spirit in you. 'We know not what we should pray for as we ought' (nor how to do anything else as we ought), but the Spirit helps our infirmities with 'groanings which cannot be uttered' (Rom. 8:26), which are not hid from God. 'My groaning is not hid from thee' (Psa. 38:9). God can pick sense out of a confused prayer. These desires cry louder in his ears than your sins. Sometimes a Christian has such confused thoughts that he can say nothing but, as a child, cries, 'O Father', not able to express what he needs, like Moses at the Red Sea. These stirrings of spirit touch the heart of God and melt him into compassion towards us, when they come from the Spirit of adoption, and from a striving to be better."

From The Bruised Reed, by Richard Sibbes.