What is the secret in The Secret Series?

In The Secret Series, the secret is based on the law of attraction, which suggests that positive or negative thoughts can bring about positive or negative experiences in a person's life. The series emphasizes that by focusing on what you desire, visualizing it, and believing in it, you can manifest it into reality. The secret lies in tapping into the power of your thoughts, emotions, and intentions, and directing them toward the desired outcome. The books in the series provide guidance on how to align your thoughts and actions with your goals and aspirations, enabling you to attract what you want into your life.