從「糞堆」到「糞球」，再從「糞球」到「水晶球」，余怒詩歌中與圓有關的意象，透露出作者成長於大躍進、文化大革命時期的歷史背景，而這些歷史事件所造成的悲劇，為後代中國人遺留下生存與道德互相傾軋的兩難習題。余怒藉由獨創性的詩歌語言，將此兩難習題顯題化，並提供了一種帶有《莊子》學意味的「圓」的因應之方

From ＂dunghill＂ to ＂stool ball＂ and then from ＂Stool ball＂ to ＂crystal ball＂ of the imagery and poetry, revealing the Yu Nu growth in the historical background of the Great Leap For-ward, the Cultural Revolution historical background, and these the tragic historical events caused by the Chinese people left for moral dilemma each other down the exercises. With the poetic language, describing survival and moral dilemmas, and to provide a Chuang Tzu-like solutions