Thomas is a certified Jungian Analyst and a certified Psychoanalyst with the California Medical Board. Thomas trained as an analyst at the Center for Depth Psychology according to C.G. Jung and Marie-Louise von Franz in Switzerland and specializes in the role of dreams and the symbolic life in clinical practice. He haslectured in the U.S., England, and Switzerland, including plenary presentations at the North American Conference of Jungian Analysts and Candidates. "The Night - Sea Voyage of Coleridge's Ancient Mariner" was the topic of Thomas' diploma thesis and the subject of a book in process. He has a private practice in Santa Barbara.