Life here below stands similitude exact of the soil which is stirred to activity and swells up by absorption of the rain water falling from the floor of the vault of heaven. The water is imbibed by soil which constitute the victuals of both man and animal causing the vegetal growths to flourish and grow healthy and vigorous. The earth is rendered beautiful and pleasing to the senses and the world comes to be adorned and furnished with all that is ornamental, the natural and the artificial, and when its inhabitants begin to think that it shall always minister to their necessities and pleasure and they are now the masters thereof, there comes Our command to pass by night or by day to convince mankind that it is not in mortals to command success, and we mow it down as if it never flourished the day before. Thus do We expound Our revelations and make Our discourse readily understood by people who reflect.