Kaku-A visited China and accepted the true teaching. He did not travel while he was there. Meditating constantly, he lived in a remote part of a mountain. Whenever people found him and asked him to preach, he would say a few words and then move to another part of the mountain where he could be found less easily.
The Emperor heard about Kaku-A when he returned to Japan, and asked him to preach Zen for his edification and that of his subjects.
Kaku-A stood before the Emperor in silence. He then produced a flute from the folds of his robe, and blew one short note. Bowing politely, he disappeared.