The "Smiling Yixing" teapot draws its inspiration from the ancient ceramic storage vessel known as the *zhong*. The body of the teapot features a distinctive heart-shaped form that gradually tapers from top to bottom, with full shoulders and a gathered waist. Its lines are crisp and clear, and its form is refined and elegantly simple, making it deeply beloved by people and establishing it as a perennial bestseller at the Zisha (Purple Clay) Craft Factory. Gu Jingzhou's "Smiling Yixing" was created during the later period of the Cultural Revolution. The clay color is purple without being dull, lustrous and richly beautiful. The form is robust and vigorous, with lines that are rounded and flowing smoothly, particularly displaying a beauty of fullness and harmony. The spout extends naturally with abundant spirit and unobstructed rhythm. Viewed from a distance, it resembles a brilliant smiling face, spontaneously bringing joy to the heart.