SHAFAQNA – In a letter to moawiyeh, Imam Ali (AS) wrote: Verily, the world amuses the human beings in order to keep them away from other things. The worshippers of the world do not earn anything from the world except a door to greed is opened to them, and the flame of their love of the world becomes more intense. The one who attains the Haram world, does not become satisfied or free from want, but thinks about things that have not been attained. But the end of all this, is the separation from all that have been gathered, and disarrangement of all that planned. If you take heed of the past, you can protect whatever is left .
 Nahjul Balaghah, Letter 49.