Dream about buying a horse expresses conflict between good and evil. You need to take time and care in shaping and molding a relationship. You may be overly worried about a situation. This denotes a someone in your life whose intentions are unclear. You have bitten off more than you chew.
Buying a horse dream is sadly a warning for how you are performing in various aspects of your life. You are feeling overwhelmed by problems. You have an skewed perception of your own image which may stem from low self-esteem. Your dream is an evidence for your unacknowledged and unexpressed emotional needs/desires. Your life has become monotonous and repetitious.
If you dreamt about buying a horse:
If you are tired of being in the same old position with the same old salary, than ask your superiors what you can do to get ahead. Be honest and straightforward with your goals and desires. Show that you are willing to do what it takes to move up.