Eric Ackroyd Interpretation: (1) If a dream contains a composite person / figure / image or a merging of what in actual life are distinct persons / things, first look for what its real-life components have in common. (For condensation)
(2) A composite of opposites - for example, a figure that is half male, half female - symbolizes, (the need for) the union or intermingling of opposed forces in the psyche: masculine and feminine, conscious and unconscious, etc.
See also Centaur, Hermaphrodite.