In the Mumonkan, case 13, Tokusan Holds His Bowls Ganto says Tokusan is renowned but he doesn’t know the last word. Later he says “Our old man has got hold of the last word! This led me to contemplate the “Last Word.” It has become a Hwatou for me; What is the last word? much like “What does the one return to? I recommend studying this case and working on it. It can bring great insight.