When we observe the earth, we will find that the conditions here appear to be most suitable for human settlement and growth. The earth is spread out beneath human beings like a natural floor. Deep oceans cater to human needs on the one hand and on the other there are the mountain ranges, so that both of them together help in maintaining a balance on the earth. The plants and trees could have grown independently, but they have been paired off, and pollination must play its part between them so that flowers, fruits and seeds will grow. The position of the earth is that, apart from its annual revolution around the sun, it rotates continuously on its axis. This rotation is completed in twenty-four hours, resulting in the creation of night and day. Anyone who seriously gives consideration to signs of this kind will be forced to accept that this earth is under an authoritative and powerful Lord. And He, by His own will, has made it subject to purposeful planning. Without conscious planning, this meaningfulness on earth would not have been at all possible.