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
Yang ± Yin: Gender in Chinese Cinema Yang ± Yin: Gender in Chinese Cinema Yang ± Yin: Gender in Chinese Cinema is a 1996 documentary by filmmaker Stanley Kwan exploring representations of queerness and LGBT identity in film from Greater China. The film was produced and partially funded by the BFI to mark the centenary of cinema. Using archival footage and specially shot interviews with major filmmakers and actors, director Stanley Kwan constructs a visual essay that attempts to demonstrate that queerness has existed in Chinese cinema since its very earliest movies. He argues that China has provocatively dealt with questions of gender and sexuality in cinema,