Read the excerpt from "Why the Sun Is Brighter Than the Moon." When they were very young, Buwan pushed Araw into a fast-flowing stream. "Sister, my sister, I'm losing my grip! Grab my hand!" cried Araw, her small hands clinging onto the slippery banks. "No, sister, I won't," replied Buwan, "for you will pull me in too!" Another time, Araw caught a cicada and put it in a cage she'd made out of bark. Buwan grabbed the cage and shook it. "Sister, my sister," cried Araw, "please be careful, because that is a present for our father."