Question

When the night had veiled the pole;​

Answer 1

Explanation:

This happens when it's super-dark out. In the phrase "night had veiled the pole," pole refers to the top of the earth, as in the "north pole," but it can also mean the pole star, also known as the North star, also known as Polaris. It's an important star for navigation, since it's bright and it stays pretty much fixed in the sky. Tonight, though, the night has "veiled" it, covered it up. This star, used in navigating folks safely through danger, is not visible. Uh-oh!