Yin describes the receptive, responsive part of a character’s psyche, the Jungian anima.
Yang is the opposite, the active, initiatory anima.
Most of us know our Sun’s astrological sign. We also may choose a Sun sign for our hero and heroine. Every realistic character has both yin and yang qualities. Flat, one-dimensional, stereotypic characters have only yin or only yang.
Aries is yang. Aries are exuberant, fiery, impulsive, quick, initiatory, self-starting
Taurus is yin. They are practical, persistent, possessive, sensual, tenacious, retentive.
Gemini is yang: verbal, mental, social, changeable, curious, versatile
Cancer is yin: sensitive, emotional, clinging, protective, nurturing.
Leo is yang: dominant, proud, regal, obstinate, generous, showy.
Virgo is yin: observant, discriminatory, logical, practical, flexible, critical, healing.
Libra is yang: companionable, diplomatic, conciliatory, indecisive, partnering.
Scorpio is yin: tenacious, deep, retentive, passionate, vengeful, sexual, secretive.
Sagittarius is yang: idealistic, expansive, optimistic, unrestrained, scattered.
Capricorn is yin: controlled, ambitious, cold, practical, cautious, responsible.
Aquarius is yang: reasoning, intelligence, stubborn, anarchistic, unconventional, independent, humanitarian.
Pisces is yin: emotional, intuitive, unclear, compassionate, sacrificing, fluctuating, flowing, structureless.
Need sparks between characters? Pair up a proud, obstinate yang Leo with a fiery, impulsive, impatient yang Aries. Yang and yang don’t mix.
Need compatibility? Introduce a yang Sagittarius to a yin Cancer. The Sag wants to try everything while the Cancer is happy to stay home and tend the fire.
Need to complicate things? Make a yang Libra choose between a yin Taurus and an yin Capricorn. Libra can’t ever make up her mind. Meanwhile Taurus is her capable Beta assistant her and Capricorn is her Alpha sky’s-the-limit boss.