…Apart from Taqwa I was also quite confused about tawakkul (reliance/trust in God). Over time these verses of the Quran have helped to clarify things for me:

If Allah helps you, none can overcome you: If He forsakes you, who is there, after that, that can help you? in Allah, then, Let believers put their trust. (3:160)

For, Believers are those who, when Allah is mentioned, feel a tremor in their hearts, and when they hear His signs rehearsed, find their faith strengthened, and put (all) their trust in their Lord; (8:02).

And Moses said: O my people! If ye have believed in Allah then put trust in Him, if ye have indeed surrendered (unto Him)! They said: In Allah we put trust. Our Lord! Oh, make us not a lure for the wrongdoing folk;(10;84-85)

These verses mention both tawakkul and du’a (supplication) at the same time. This removed the doubt that du’a is against/contrary to tawakkul….. (Shahabnama) .

Since Green Sufi has already written on Shahab sahib’s views on tawakkul I will not reproduce it here but please do read it on his blog here.