Syzygy refers to astrological term Carl Jung used to describe deep psychological relationships. It is usually the anima/animus pair, but also reflects other "opposites," like male paired with female. The parental pair, which arises only when the ego develops enough, stands behind it and is molded by it, like a base carries the lightbulb. The syzygy has three components: a man's femininity and woman's masculinity; the experience man has of woman and vice versa; and the masculine and feminine archetypal image.
Archetypal symbolic pairings are 'yoked together' by this term.
Contrasexual (male-female) pairings occur in dream symbolism.
They refer to internal communication between the unconscious and conscious minds of any individual.
List of books: Syzygy