Leaven.

van Gogh, Edge of a Wheat Field with Poppies, 1887

A man may well ask himself: how shall I ever manage that? For one’s own work, thoughts and observation are not enough, we need the comfort and blessing and guidance of a higher power, and that is something, anyone, who is at all serious and who longs to lift up his soul to the light is sure to recognize and experience. Pining for God works like leaven on dough. May it also prove to be true in the story of both our lives.

Vincent van Gogh