Here is an excerpt from The Rime of the Ancient Mariner by Samuel Coleridge:
The ship was cheered, the harbour cleared,
Merrily did we drop
Below the kirk, below the hill,
Below the lighthouse top.
What does merrily did we drop below the kirk, below the hill mean? Or to be more precise, the expression to drop below in this context.
Does it mean "we left the kirk, the hill and the lighthouse over the horizon"?