He doesn't name the swan, just as he doesn't name the "rough beast" in "The Second Coming."

他没说这天鹅叫什么，就如在《三贤》《第二次降临》,他也没说粗鄙的野兽的名字“

耶鲁公开课 - 现代诗歌课程节选

There is in there, too, the disturbing suggestion that Christ himself was a rough beast.

其中也有，恼人的暗示,基督本身是一只野兽。

耶鲁公开课 - 现代诗歌课程节选