"My faith, inasmuch as I have any, is more like a kind of Joseph Campbell thing, and even that frequently finds itself tested to oblivion in siren waters"

This quote by David Knopfler talks to the idea of faith being an individual journey. He recommends that his faith is more of a "Joseph Campbell thing," referring to the late mythologist's concept of the "hero's journey." This journey is among self-discovery and development, and Knopfler indicates that his faith is a part of this journey. He also suggests that his faith is tested in "siren waters," describing the harmful waters of temptation and doubt. This quote talks to the concept that faith is a personal journey, which it is constantly evaluated and challenged. It depends on the specific to choose how to react to these challenges and to find their own course.