This work is a dying verse that Qingzhuo Zhengcheng, who came to Japan from Yuan and served the head priest of famous temples in Kamakura and Kyoto, wrote for his disciple on January 17, 1339, when he realized he was near death, and is commonly known as “Bi-ran-kan” (Biran Scroll) after the first three characters of the poem.
There is also a legend that Qingzhuo Zhengcheng appeared by breaking the coffin for a disciple who had not made it in time to see him at his deathbed and bestowed upon him the Dharma, so the work is also known as the “Coffin-Breaking Calligraphy.”

Publications
*Hibai Yoko – Selected Catalogue from the Tokiwayama Bunko, The Tokiwayama Foundation, 1967 (see commentary by Hisao Sugahara)
*Treasures of Tokiwayama Bunko Foundation – Selected Masterpieces: Calligraphy and Ink Paintings, Tokiwayama Bunko Foundation,2003 (see commentary by Noriko Takahashi)
*Selected Masterpieces from the Treasures of Tokiwayama Bunko Foundation – Commemorating the 80th Anniversary of Tokiwayama Bunko Foundation, Tokiwayama Bunko Foundation,2023 (see commentary by Chizuko Emi)