Unlike other high priests, Kanzan did not leave any literary works behind; no portrait of him was made during his lifetime; he left only a few of his writings except Inkajo (a certificate of enlightenment) given to Juo Sohitsu, his diciple.
関山には他の高僧のような語録や著書はなく、生前に描かれた肖像もなく、遺筆も弟子の授翁宗弼に書き与えた印可状以外にほとんど残されていない。