These three iron-cast statues, judging from their shapes, are believed to represent the Primordial Heavenly Lord and his two attendants. Taoism regards the Primordial Heavenly Lord as the supreme deity and there is also the saying of "The Primordial One Qi and the Three Pure Ones". Among the "Three Pure Ones", the Jade Pure is the Primordial Heavenly Lord and ranks first. Shangqing, also known as the Celestial Venerable Lingbao, ranks second. Tai Qing, also known as the Heavenly Lord of Morality, ranks third. The "Three Pure Ones" seem to also express the fundamental principle of the ancient way of health preservation, that is, being in the static state of the infinite can nourish one's own vital energy, nourish essence, energy and spirit, and eventually achieve the great way.