Mara reminded his son that he had to be the watchman of the lake after his death. Mara also shared with his son what the Goddess had Instructed Mara to do. She had commanded that nothing that flew, swam or walked those parts, where the lake existed, be killed as the place was scared.
So Mara told his son that no killers should be allowed there, whether they came with arrows for the gulls which skimmed over the water or with the rod for the fish. These instructions are given by Mara to his son, first of all, show that Mara was obedient to the Goddess. Secondly, it shows that he was a great lover of nature. Thirdly, it shows his sense of responsibility. He wanted the lake and the bank to be taken care of in an exemplary way. At the same time, he was authoritative too. He did not allow anyone to exploit the bank. Yet, he did not deny anyone the just use of the water of the bank. Thus, we see that Mara was a noble watchman of the lake.
