The "Monk's Hat Teapot" originated from Yuan dynasty ceramic forms, named for its mouth and neck resembling the hat crown worn by Tibetan Buddhist monks. It was extremely popular during the Hongwu and Yongle periods of the Ming dynasty, with blue-and-white and underglaze red monk's hat ceramic teapots passed down through generations. The purple clay "Monk's Hat Teapot" began to be made in the late Ming dynasty. Building upon the foundation of the ceramic monk's hat teapot and fully utilizing the complex purple clay slab joining technique, it developed a hexagonal prismatic form that complemented the simple and unadorned body of purple clay, each enhancing the other's beauty. Gu Jingzhou's "Monk's Hat Teapots" were mostly made with blended clay, with pearl-like granules subtly visible throughout, eschewing superficial charm in favor of simple elegance and solemn dignity. The entire vessel is assembled from more than twenty clay slabs, with rigorous structure and clear contours. The body, neck, and lid are all hexagonal prismatic forms, with roundness within the angularity. It features rounded shoulders, with the lower belly curving inward gracefully, creating a form with pleasing undulations that stands tall and elegant. The mouth and lid are concealed within the hat brim, and no matter how adjusted, they fit together seamlessly. The knob is shaped like a lotus seed, while the duck-bill spout with its graceful curves is positioned at the junction of belly, shoulder, and neck, level with the lid surface, echoing the flying handle. Gu Jingzhou created two styles of "Monk's Hat Teapots": the "high-rimmed short-bodied" and the "low-rimmed tall-bodied" versions. In details such as the joining of clay slabs and the treatment of lines, he demonstrated exquisite craftsmanship—work of supernatural skill, wonderful beyond words—interpreting the "form, spirit, and essence" of purple clay to perfection.