Complex sentence: In the case of the Canonical gospels, this demythologising aims to reveal the underlying kerygma or "message" conveyed by a passage: what does a Gospel say about the nature and significance of Christ and about his teaching ?
Split into simpler sentences: In the case of the Canonical gospels, this demythologising is intended to reveal the underlying kerygma or'message' that is to be conveyed. What does the Gospel say about the nature and significance of Christ and his teaching?