About “Cantongqi”
The Cantongqi, or Sandōkai, is a poem by the eighth Chinese Zen ancestor Shitou Xiqian (Sekito Kisen). It is a fundamental text of the Caodong (Sōtō) school of Chan (Zen) and is chanted daily in temples throughout the world. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.