SHAFAQNA – If you look at the situation in a bank, you will see that the bank clerk sometimes receives others money and at other times pays back people’s money back to them. The clerk is neither happy when receives the money nor unhappy when pays back the money because the bank is only a depository. If our outlook towards the world is the same, when we obtain wealth, we are not overjoyed, and when we lose it, we are not too sad.
In Ayah 23 of Surah Al-Hadeed, Allah (SWT) says: “So that you should not feel sorry about what may have escaped you, nor yet rejoice in what God has given you. Allah (SWT) does not love every conceited boaster.” It is also narrated from Imam Ali (AS) who said: The one, whose ambition is the world, will be too regretful at the time of dying .
 Beharul Anwaar, Vol. 74, page 378.