According to an ancient legend, the lark was created before the Earth. When its mother died, the lark could find no place for burial, as there was no soil. It left its mother's body for five days. On the sixth day, having no other option, it buried its mother in its own head. Thus, it acquired its crest, which is commonly said to be its mother's burial mound.
Youth's first duty is to show respect to their parents.