After Sogen FUJIBAYASHI died, Soetsu wrote "Sekishu-ryu Sanbyakukajo Chukai (Notes on the 300 articles of the Sekishu-ryu School)" and played a key role in propagating Sekishu school across the country.
藤林宗源の没後、江戸において『石州流三百ヶ条註解』を著して石州流を諸国へ伝播する中心的な役割を果たした。