What are the motifs in The Practice of the Presence of God by Brother Lawrence?

Humility is a recurring idea in these letters. Lawrence's example only serves the believer if one lives a life of abject humility. Though he never uses the term directly, Lawrence describes various habits that serve to define his idea of humility. He advises a lack of personal ambition. Instead, he councils his reader to seek the will of God, even if that leads one into a life of little personal attention. He also suggests habits of self-denial and fasting, showing that one can forgo one's own wants to seek the will of God.