We explore the idea that the mind can only tell us about the past, and that we should be mindful of our beliefs and how they shape our reality. The author argues that our beliefs have immense power over our personal reality, and encourages readers to apply a strict filter to what they choose to believe. By doing so, we can avoid being trapped in negative thought patterns and focus on what is truly important in the present moment. Ultimately, the message is one of hope and empowerment, encouraging readers to choose beliefs that serve them and take control of their own experience.