A dervish was sweeping the courtyard. Abu Sa'id saw him and said, "Be like the dust ball that rolls before the broom and not like the rock left behind."

One must be like the dust, which has no will of its own but goes wherever the broom (the spiritual master) commands — not like the rock, which asserts its own will and resists the direction of the guide.

Abu Sa'id , Essential Sufism by James Fadiman, editor, Robert Frager, editor