Content

Being content with divine fate.                   (رضا بالقضا )
You took all the effort, the disease may cure or not. The concept of it is not رضایت (happy), but the illness of my child should not deter me from the main work which is the worship of God and illness does not disturb one's determination. And this is one of God"s hidden graces.  
This prayer creates software need (asking)  that is, any need in man creates happiness for him. 
This prayer is a prayer to create your asking. Any request that goes into this structure will  lead to Blessing                                           ( قره العین ‌ برد العیش)
and the other hand will be lead to the ornament of faith and creating a stream of guidance.