According to the Christian teaching of Father Richard Rohr, the concept of the third eye is a metaphor for non-dualistic thinking; the way the mystics see. In Rohr's concept, mystics employ the first eye (sensory input such as sight) and the second eye (the eye of reason, meditation, and reflection), "but they know not to confuse knowledge with depth, or mere correct information with the transformation of consciousness itself. The mystical gaze builds upon the first two eyes—and yet goes further."