一則本生故事，解釋某座林中湖畔蘆葦中空之因緣：猴王菩薩為解口渴的猴群之困，賜予眾猴神奇變空的蘆葦當作吸管取水，從而避開了潛伏的惡鬼。

A Jātaka explaining why the reeds around a certain forest lake are hollow, telling how the monkey-leader Bodhisatta provided his thirsty followers with reeds that miraculously became straws to drink through, avoiding a lurking ogre.