At one time the tail and the head of a snake quarreled as to which should be the front. The tail said to the head:--"You are always taking the lead; it is not fair, you ought to let me lead sometimes." The head answered;--"It is the law of our nature that I should be the head; I can not change places with you."
But the quarrel went on and one day the tail fastened itself to a tree and thus prevented the head from proceeding. When the head became tired with the struggle the tail had its own way, with the result that the snake fell into a pit of fire and perished.
In the world of nature there always exists an appropriate order and everything has its own function. If this order is disturbed, the functioning is interrupted and the whole order will go to ruin.