We have a God who is infinitely gracious and knows all our wants. I always thought that he would reduce you to extremity. He will come in his own time, and when you least expect it. Hope in him more than ever; thank him with me for the favors he does you . . . I do not advise you to use a multiplicity of words in prayer; many words and long discourses being often the occasions of wandering. Hold yourself in prayer before God like a poor, paralytic beggar at a rich man’s gate. Let it be your business to keep your mind in the presence of the Lord . . .One way to recall the mind easily in the time of prayer, and preserve it more in tranquility, is not to let it wander too far at other times. You should keep it strictly in the presence of God.
– Brother Lawrence of the Resurrection