Asking for directions will prevent you from getting lost, which means to be humble, willing to ask for advice, and not to take detours and take shortcuts; leaving a way out will not lead to a dead end, which means to consider everything comprehensively so that you can advance and retreat freely; if you dare to look back, There is no dead end, which means that if you know your mistakes, you will correct them, don't be stubborn, and have the courage to take responsibility. Taken together, it means the accomplishments and qualities a person should have.