And Milton, or the Elder Brother here, is clearly thinking of Revelation 14, in which it's only the pure spirit or the virgin -- that can even begin to hear the new song being sung before the throne of God.

弥尔顿，或者大哥，显然说的是《启示录》第14章的内容，那里说只有纯净的精神或有童贞,才可以听到在上帝面前唱的新歌。

耶鲁公开课 - 弥尔顿课程节选

For all these reasons, "The Fisherman" is really a re-writing and even a kind of continuation, rather than a repudiation, of "The Song of the Wandering Aengus" and the poems from that period.

就这些原因而言，渔夫,实际上是对流浪者安古斯之歌，和其他早期诗歌的一种重写,甚至是继续而不是否定。

耶鲁公开课 - 现代诗歌课程节选