Your friend saw this resource on bethinking.org and thought you should see it:
Narcissism - The Worldview of Self
Andrew Fellows' series of four talks on Narcissism - the Worldview of Self
See the full resource online by visiting bethinking.org:
https://www.bethinking.org/human-life/narcissism-the-worldview-of-self
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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.