You do what you must, and G-d will do what He must.
One of the Alter Rebbe's great and very close chassidim had yechidus, in the course of which the Rebbe inquired after his situation. The chassid complained bitterly that his financial situation had utterly deteriorated. The Rebbe responded: You are needed to illuminate your environment with Torah and avoda of the heart - (davening). Livelihood and what you need - that, G-d must provide for you. You do what you must, and G-d will do what He must.Hayom Yom