This whole world is a cloak for the lowest rung of holiness, for its feet, as it were. As it is written: "And the earth is my footstool." God limits the godliness he has in infinity, and narrows it down to the focus of the material world in which man exists. And there he assigns every man his thought and word and deed according to the day, the place, and the person, and hides therein the signs to lead men to his service. And so a man should immerse himself in the task of understanding the signs which are cloaked in thought and word and deed and so given to him in particular, in his work and his affairs, and in everything God appoints for him day by day.

(Martin Buber)