Explain the meaning of-
'God save thee,ancient mariner'
From the fields that plague thee thus!-
Why look'st thou so?-"With my crossbow
I shot the Albatross"
the guest who is hearing the story says the words in the first 2 line, as plz save the ancient marimer god from all the sorrows that is undergoing. as he feels sad for him
the las two lines is that the mariner who accepts his falt and say it to the guest.
hope it helps.