I dreamt that I was racing against some dirty horses
Dreams about racing can symbolize competition or a sense of urgency to reach a goal. The dirty horses can represent challenges or obstacles that you feel are holding you back from reaching your goals. It's possible that you are facing some difficulties or feeling overwhelmed by the obstacles in your path, and you may need to find new strategies to overcome them. Alternatively, the dirty horses could represent negative thoughts or feelings that you need to address in order to move forward. Pay attention to the details of the dream and any emotions you felt during the race, as this can provide further insight into what the dream is trying to tell you.