If you see a stallion in a dream, then such dream indicates the capability, strength and power. To ride the stallion, denotes to the target you reached through all of those capabilities and aspects you have within your personality.
Dream dictionary: Stallion dream meanings
…Dreaming of a stallion, foretells prosperous conditions are approaching you, in which you will hold a position which will confer honor upon you. Dreaming you ride a fine stallion, denotes you will rise to position and affluence in a phenomenal way | however, your success will warp your morality and sense of justice. To see one with the rabies, foretells that wealthy surroundings will cause you to assume arrogance, which will be distasteful to your friends, and your pleasures will be deceitful….
…symbolisms listed above. Dreaming of a stallion suggests unfulfilled sexual desires. Dreaming of an injured or sick horse suggests that you will soon face difficulties in the matters that youre handling, or that a friend needs your help. Dreaming of a horse pulling a plow or any vehicle, it means that you must work hard to solve seemingly unsolvable problems. Dreaming of riding a horse other than a skinny or sick and of any color other than black, it means that successes are nearby. If the horse is white, fat and healthy, suggests a prosperity that will allow you to travel and enjoy conveniences and material values. If this is a racehorse, it suggests frivolity or precipitation from dreamer, which is exposed to significant losses. Dreaming of crossing a river while riding a horse indicates important gains. If the horse falls and the dreamer is coming out of the water…