God has created this world in such a way that here material events have become the symbols of moral realities. Whatever Almighty God expects from man at the level of consciousness is being demonstrated in the rest of the world at the material level. In the Quran two events of nature have been mentioned here. One is that when there is rainfall, its water flows and reaches rivers and streams. At that time a great deal of foam surfaces on it. In the same way when silver and other minerals are heated in order to clean them their impurities appear in the shape of foam, but immediately thereafter the foam, which is useless for man, evaporates in space and the water and minerals which are useful for man remain intact. These are the events of nature through which God shows symbolically what principles He has laid down for the success or failure of life. One principle is that, in this world, only that person has a place who proves useful to others. The individual who has lost his capacity to benefit others has no place in this world created by God. The same is true of communities and groups.