1Food

Soudabeh:
The food of household of the prophet ( P.B.U.H)  is the five words.  That is, they used these five words when they  faced with problems. 
So any need that turns into these five words will not harm us but will benefit us. 
It is,  infact, an amullet and humans want  a shelter in the face of problems.  Any problem that causes one to be attached to God is not a problem but it is Khair ( good).
The person has a belief before he demands something,  and that belief is associated with knowledge. 
Desire, will, intention and action are after the request and the result is after the action. 
Belief means that work must be done.  When you know something is your need,  this is belief.  For example: reading a book is a useful thing.  This is a need, and reading a book may not be a need for anyone else.  Because that belief is not for that person because he has no knowledge.  
There are two needs  one is for the world and the other is only for the Hereafter. If the need for the world as a result the will,desire,intention and action would be for the world.
Need is the axis for reforming of a person. Need is the source of desire and tendency, and all deviations returns to that source.