One of the functions of Revelation [or of worship] was to purge and to refurbish the Christian imagination. It tackles people's imaginative response to the world, which is at least as deep and influential as their intellectual convictions. It recognizes the way a dominant culture, with its images and ideals, constructs the world for us, so that we perceive and respond to the world in its terms. Moreover, it unmasks this dominant construction of the world as an ideology of the powerful which serves to maintain their power. In its place, Revelation offers a different way of perceiving the world which leads people to resist and to challenge the effects of the dominant ideology.