Many of the symbols and analogies persist. We all dream so many of us will have seen this imagery in our dreams at some time, that of horses and maybe someone on the horse's back. The other three likely relate in terms of the color skin or hair. They become wives of one person 'the rider' . Well few marriages are smooth as silk.
Partners can have wars of wills.
Most try to work out the differences, while some are unwilling to relinquish much to make the relationship work. They do not all work out as we know. Yet at the same time too many which could work are trashed for selfish reasons or other less than admirable attributes. The analogy of a horse being a partner is also in Chinese and horse is half the symbol for mother. It's pronounced similarly, just different in tone.