The blowing of a cool breeze before the start of the rains announces the fact that the God of this world is the most Kind and Merciful. Sailing across the seas is very important for the promotion of civilization. But, this is possible only when the winds blow within certain limits. Similarly, in the present age, the possibility of air-travel is dependent upon the fact that God has arranged to maintain a layer of air on the surface of the earth and given human beings the knowledge of aerodynamics needed to design air worthy plans. All these arrangements have been made with a view to ensuring that man lives in the world as a grateful subject of God. The prophets of God appeared in the world in order to draw the attention of the people to these facts. But, while some accepted them others rejected them. Then, God helped those who accepted them and destroyed the deniers. The same fate on a larger scale awaits these two categories of human beings in the life Hereafter.