people in Vietnam could not understand why it rained so much.  Therefore, this legendary story was invented to help people understand the weather of Vietnam.

As my informant was growing up, my informant believed that the reason why it rained so much in his hometown was because the Water spirit and the Mountain spirit were always fighting.  This legend is mainly told to children to help them understand the fickle weather in Vietnam.  As my informant grew up, he realized this legend was not true and stopped believing it.  However, when younger children especially nieces and nephews ask about why it rains, my informant always tells them this legend.