When the northeast sky turned black and threatening A storm was blowing over Iceland.

VOA: special.2010.05.08

Maybe it could refer to either the poet or the sun throughout the entire line, if you think of the mantle blue as being the actual sky that the sun is able to twitch over his shoulder.

或者两者皆可,从整句的行文看来，如果你们把蓝色的丝巾看作是真实的天空的话,那么太阳的确是能够在他的肩上轻轻颤动。

耶鲁公开课 - 弥尔顿课程节选

The sky leaked all over all of it, and then it began to leak in to the car.

天空就像四处在漏水，然后车里开始进水。

耶鲁公开课 - 1945年后的美国小说课程节选

The sky leaked over all of it."

天空到处在漏水“

耶鲁公开课 - 1945年后的美国小说课程节选