To sit in its shade is to seek refuge in Allah the Exalted, and to expect nothing from anything other than Allah.
When Zunnūn was asked what tawakkul (reliance upon God) is, he replied as follows: Tawakkul is to abandon the planning of the nafs (the lower self) and to strip oneself of one's own power and strength. Another answer Zunnūn gave to this question was: To uproot all lords and not to trust in causes. When the questioner (the sâhib) asked for further clarification, Zunnūn said: That is, the nafs...