About the Surah

       He sends down rain water from the sky and (the streams flow) through a valley according to its capacity (i.e. the Quran is like rain and heart is like a valley. The Quran benefits the heart according to its capacity). So the stream brings with it the foam floating on the surface of water (this is one kind of dirt). Similar dirt rises on the surface of the (ores) which they heat in the fire to make ornaments or utensils. Thus Allah explains the truth and falsehood. (i.e. water and ornaments are useful like the truth, and foam is useless like falsehood). And the foam (as scum) is thrown away and what is useful for the people is retained for the use of the people in the land. Hence, Allah gives example (for the truth and falsehood, or, Belief and disbelief).