Every form, let us say, beginning from the little worm and ending in man, is like one of the cars of the Chicago Ferris Wheel which is in motion all the time, but the occupants change. A man goes into a car, moves with the wheel, and comes out. The wheel goes on and on. A soul enters one form, resides in it for a time, then leaves it and goes into another and quits that again for a third. Thus the round goes on till it comes out of the wheel and becomes free.