There's a second figure here standing ab extra, and that's the moon hovering overhead: "while over-head the Moon / sits Arbitress."

这里有第二个置身事外的角色，就是高高挂在空中的月亮：,“月亮高挂天心，像个公正的决断人“

耶鲁公开课 - 弥尔顿课程节选

First we have the "Pilot of some small night-founder'd Skiff," and the pilot stands ab extra, from outside, in the simile.

首先我们有这句“迷茫深夜中，轻舟的导航人“,并且这个导航人在明喻中，体现为从诗句之外向内眺望。

耶鲁公开课 - 弥尔顿课程节选