This phrase means that people should be content with the destiny that Allah has predetermined for them and with what He gives them, both unconditionally and without any internal resistance. People may not realize the goodness in a given event at that very moment. But whether they realize it or not, they know that Allah wills goodness in a given event at that very moment and in every event. In fact, believers always have infinite trust in Allah in everything that befalls them. They never wonder whether that event will bring them good or bad; rather, they trust in Allah unceasingly and know that they will always find good.
One may become fatally sick, have a serious accident and become physically disabled, lose all of his or her wealth, be wronged by others, or encounter an utterly unexpected event. No matter what happens, one should know that all of these things take place under Allah’s complete control, and therefore feel at peace. That person submits completely to Allah’s wisdom and mercy and thanks Him, regardless of the circumstances in which they find themselves. This is the behavior exhibited by those who are pleased with Allah, about whom Allah states the following: