REPUBLIKA.CO.ID, JAKARTA -- Although it is guaranteed by Allah SWT, everyone has their own level of fortune. In addition, there are those whose nutritional levels are abundant as well as the meager ones. But it is all in accordance with the provisions of Allah. What is the wisdom behind the difference in levels of sustenance?

Irwan Kurniawan in his book Mengetuk Pintu Rezeki says that each person has different abilities. People's chances of being productive are not the same. Similarly with the chances of getting a different job.

Irwan says that Allah gives fortune and an airy life to a group of people not simply because they deserve it. On the contrary, God gives narrow sustenance to a certain group of people not for lack of it alone.

According to Irwan, God gave the measure of the difference to test His gifts given to them and the wealth bestowed upon them. Thus, it can be seen how they can be grateful for the favor given by Allah.