Introduction to the handwriting of "Martyrdom": Lay scholar Chen Xiangyao once commented on the calligraphy style of Master Hongyi in his later years: "The inefficiency lies in the ease of writing, the sharpness of the writing, and the concentration of spirit. Writing this kind of characters, You must first concentrate all your energy in your heart, then use it on your wrist, convey it to your pen, and convey it to your paper.