In his early twenties, Lo was not well; his father sent him to see Cheng Man-ch'ing, who was a well-known artist and traditional doctor, as well as a t'ai chi master. Lo was not able to consume the prescribed herbs, so Cheng recommended he study t'ai chi to build up his body strength. Lo began training with Cheng, and never stopped. He studied literature in college, and then got a masters in public administration. After working in the government, all the while continuing his t'ai chi studies, he moved to San Francisco, and with Cheng's encouragement, began his teaching career.
Over the years, Ben Lo taught thousands of students, both in his San Francisco studio and in regular camps and workshops in many cities around the United States, Europe, and elsewhere. He was a regular visitor to the Shih Chung T'ai Chi Association when visiting Taiwan. Lo, along with Robert Smith, was a staunch defender of Cheng's teachings and reputation.
Lo produced several important books. He worked on a translation of the Classics with Susan Foe, Robert Amacker, and Martin Inn, titled The Essence of T'ai Chi Ch'uan, which was one of the earliest t'ai chi books in English (it has since been reissued by the Inner Research Institute). With Robert W. Smith, he translated Chen Weiming's T'ai Chi Ch'uan Ta Wen: Questions and Answers on T'ai Chi Ch'uan. With Martin Inn, Lo translated Cheng Man-ch'ing's seminal Cheng-tzu's Thirteen Treatises on T'ai Chi Ch'uan.
Lo was the subject of a number of articles, including a lengthy interview in the Journal of Asian Martial Arts. He also gave a series of lectures and made videos, produced by the Inner Research Institute.
Lo's workshops were grueling, challenging, enlightening, and informative. They were usually quite large, with scores of students in attendance. They struggled to hold postures while he walked around making correcctions on everyone. Lo's ability to root was legendary; he was able to playfully shrug off the most aggressive and large push hands challengers, always with a smile on his face. His teaching style was very direct and often very critical-sounding, but always with humor. "You must go lower! Remember my name, Ben(d) Lo!" He regularly admonished me and others, saying, "Why do you Americans have to write books about t'ai chi? You should just practice more!" Another pet peeve he had was how impatient people were about learning and presumptuousness about becoming teachers: "They think they can teach t'ai chi after just studying one month. They think they can be born after just one month!"
Ben Lo's work lives on in his many students and others whom he inspired.
—Barbara Davis