Chinese sun and moon mirrors being hung round the neck, or because necks are concave things. Liu An's (c. 139 BCE) "Huainanzi" "Masters of Huainan", which is a compendium of writings from various schools of Chinese philosophy, was the first text to record "fangzhu" dew-collectors. Two "Huainanzi" chapters metaphorically use "sun and moon mirrors" to exemplify "yang" and "yin" categories and elucidate the Chinese notion of "ganying" "cosmic resonance" through which categorically identical things mutually resonate and influence each other. The "yángsuì" 陽燧 "burning-mirror" is "yang", round, and sun-like; the "fāngzhū" 方諸 "square receptacle" is "yin", square, and moon-like. The first context describes "yangsui" and
Yin and Yang (Fish albums) which was also released as a lead single. All new tracks were mixed and produced by James Cassidy, who had previously worked on "Songs from the Mirror" and Suits. The outside cover, a relatively simple concept based on the yin and yang symbol (with each element in the shape of a fish) surrounded by a circular Celtic knot pattern, was again designed by permanent Fish collaborator Mark Wilkinson. The "Yin" version of the cover has a black symbol on a white/greyish background, the "Yang" version has a white symbol against a dark-red/black background. (On the Radio Edits CD cover, the