Master Stephen Co, a personal student of Grandmaster Choa Kok Sui, is one of only four Master Pranic Healers in the world, and the World Pranic Healing Organization's Senior Instructor responsible for teaching throughout the United States. Over the last ten years, Master Co has averaged 100 free, open-to-the-public presentations and instructional classes per year and has taught thousands of people in the United States, Mexico, and the Philippines. He was the first licensee of Pranic Healing outside the Philippines.