Shinran, born Hino Arinori, is the foremost proponent of Japanese Pure Land Buddhism and is widely regarded as the founder of Jôdo-Shinshû, more commonly known outside of Japan as Shin Buddhism. Pure Land Buddhism has the largest following in East Asia (China, Korea, and Japan), and the Shin sect is the largest sect of Japanese Buddhism. As a development of Mahayana Buddhism, the core of Shinran's thought is based on the twofold truth: