Horse
Psychological (Freud)
In depth psychology the horse embodies powerful, often barely bridled instinctual energy and the urge toward freedom and departure. A bolting horse may mirror a passion that threatens to overwhelm the waking self.
Oriental reading
In the tradition of Ibn Sirin the horse, especially a noble and well-bridled one, promises esteem, good fortune, and an increase in power or wealth. An obedient mount points to success that follows the dreamer willingly.
Animals
Dream interpretation is for self-reflection and entertainment — it is not a medical or psychological diagnosis.