People who don't care one way or another aren't artists. Artists who "can take or leave it" don't create much art. The prerequisite for making art is passionate feeling.

Painting is never just the representation of a scene. It's a visual communication, a way we express feelings—, our passions as artists— to the viewer. If you paint without passion, your work will never transmit a mood; if you don't feel it, neither will the viewer. If you paint without feeling, you'll never express yourself; you'll never convey your vision; you won't have a vision.

Possible Preaching Angle:

When you preach, teach, serve, sing, or help others with passionate feeling, however, you create an atmosphere; you create a mood. You communicate something important and memorable to the people of God.