Your friend saw this resource on bethinking.org and thought you should see it:
Finding God in Middle-earth
An exploration of the Christian themes and imagery in 'The Silmarillion' and 'The Lord of the Rings'.
See the full resource online by visiting bethinking.org:
https://www.bethinking.org/culture/finding-god-in-middleearth
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bethinking.org is a collection of resources which aims to make sense of the big questions of life about God, Jesus and Christianity.