Researchers are just beginning to recognize the impact of a subconscious level of communication on our health and vitality—communication generated by a vast colony of single-celled bacteria inhabiting our gut, the area governed by the manipura chakra. In this two-part series, Jeff Masters explains how these bacteria use psychobiological chemicals and the gut-brain axis, a communication channel, to influence our body and mind. He also offers practices to support this colony of bacteria, empower the manipura chakra, and help us live a more vibrant, radiant life.