Hian endeavoured, of course fruitlessly, to gather it up, and in his efforts dug so deeply into the ground that he made an opening clear through the sky-world.Wondering what might lie below, the brothers determined to tie one of their dogs to a long rope and lower him through the aperture; and when they had done this, and the dog had been drawn up again, they found white sand sticking to his feet, whereupon they resolved to go down themselves, although the other inhabitants of the heaven-world refused to accompany them thither.