“When a religion aggressively proselytizes and seeks to transform the world, its most important resource is its images. It is image that transforms the imagination, and it is imagination that engenders a lifestyle. And what globalization does better than anything else is transform the imagination. That is why the entertainment and advertising industries are the first wave of the emerging global consciousness.”
Brian Walsh & Sylvia Keesmaat, Colossians Remixed: Subverting the Empire
I don't see how this quote diminishes the calling of writing (or any of the other arts we often cover in sister blog Word), as writing is about using words to create powerful images (via metaphor and otherwise) in the mind.
This quote is more about a healthy use of the arts to reach others.