When Myocho became seriously ill in 1337, he recommended Egen KANZAN as the Zen priest who was to be the mentor of the Cloistered Emperor Hanazono after Myocho died, upon the request of the Cloistered Emperor Hanazono,.
建武4年(1337年)、妙超は病に伏し重態となるが、花園法皇の求めに応じて、妙超没後に花園法皇が師とすべき禅僧として、弟子の関山慧玄を推挙した。