 He also departed from the Sōtō conventions of his day by training lay persons with monks rather than separately.A well-known heir in the West is Hakuun Yasutani Rōshi, a Sōtō monk who he also trained in koan study.This led ultimately to the spread of combined Sōtō and Rinzai methods by the Sanbo Kyodan, a new Zen sect founded by Yasutani which became influential in the West.