Kara no Kyoukai Episode 3 “Remaining Sense of Pain” (2008) Ufotable
Kara no Kyoukai Episode 2 “A Study in Murder Pt 1” (2007) Ufotable
The Taijitu, a Reoccuring symbol in the series is traditionally associated with Chinese philosophy and contains the Ying and Yang which is correspond with Masculine and feminine ideas. According to wikipedia
Yin is the black side with the white dot in it, and yang is the white side with the black dot in it. The relationship between yin and yang is often described in terms of sunlight playing over a mountain and a valley. Yin (literally the ‘shady place’ or ‘north slope’) is the dark area occluded by the mountain’s bulk, while yang (literally the ‘sunny place’ or ‘south slope’) is the brightly lit portion. As the sun moves across the sky, yin and yang gradually trade places with each other, revealing what was obscured and obscuring what was revealed. Yin is characterized as slow, soft, yielding, diffuse, cold, wet, and passive; and is associated with water, earth, the moon, femininity, and nighttime. Yang, by contrast, is fast, hard, solid, focused, hot, dry, and aggressive; and is associated with fire, sky, the sun, masculinity and daytime.
The little dot of opposing color within each half represents, according to some, the bit of female in the male and the bit of male in the female. The second victim represents what shiki is going through internally, her identity split into two beings inside of one body, the masculine SHIKI personality, and her normal Shiki personality. The fourth victim brings it all together by having the Taijitu actually carved into their body
Also props to Ufotable for tying together the Lens from Tsukihime with the overall thematic imagery. My hat is off to you.