Wu Yin Ji Yun (Five Tones Collected Rhymes) uses "shi" and "zhao" as fanqie, pronounced the same as "shao." Attributed to Tai Shang Lao Jun, it appears in the "Bo Zhou Lao Jun Stele." Zhang Daozhong, in Wu Yin Lei Ju (Five Tones Collected Categories), added annotations stating that the character is composed of "one," "inner," and "fire." "One" represents the Kan trigram, symbolizing water; "inner" signifies the human body possessing both water and fire internally. Without relying on external firewood for combustion, it utilizes its own internal water and fire to refine impurities, seeking purity and authenticity, transmuting cinnabar, preventing the dissipation of one's own mind and nature, thereby achieving the Great Way, and obtaining the method for long-lasting existence and eternal stability like stone. Note: The Zi Hui (Character Compendium) considers this character the same as "shao." The Zheng Zi Tong (Corrected Character Compendium) considers it the same as "bing," unaware that although its pronunciation is the same as "shao," its meaning has subtle differences. As for it being the same as "bing," that is entirely without basis.