Why is the Wedding Guest a sadder and wiser man after hearing the Mariner's story in "The Rime of the Ancient Mariner"?I need three points. Well...

The wedding guest is "sadder and wiser." Possibly, he is
sadder because he himself is in need of repentance. Perhaps, the wedding guest has
prejudices against some of God's creation that some consider lesser
than.

Although the mariner kills the albatross, he has now
learned his lesson and feels that all of God's creation should be respected. In fact,
that is what he tells the wedding guest before his
departure:

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Farewell, farewell! but this I tell
To
thee, thou Wedding-Guest!
He prayeth well, who loveth well
Both
man and bird and beast. (lines
611-614)

The wedding guest
has learned so much from the mariner. He realizes how much the mariner has suffered for
killing the albatross. Perhaps, the wedding guest is much wiser for hearing the story.
Perhaps, the wedding guest has a new appreciation for all of God's creation. An
albatross is a clumsy bird on its feet. Perhaps, it represents those who are
significantly different and viewed by some men as less graceful. Perhaps, the wedding
guest is sadder because the mariner has had to suffer so. Perhaps, the wedding guest has
hidden prejudices that are unresolved. However, since the wedding guest is wiser, he
will surely make the error of his ways right. There is a reason why the wedding guest
becomes engrossed in the mariner's story. Perhaps, he could associate with the mariner
in his prejudices of the albatross whom some have considered as a clumsy, lesser than
bird.