Nine Personality Types If you have ever wondered WHY you react to particular people or behave in certain situations in ways you later regret, exploring the Enneagram may help you better understand yourself. The Enneagram explores motivations for behaviors that may or may not be healthy. Behaviors express our personality type. The Enneagram helps people understand why. After hearing an interview with the author of The Road Back to You, An Enneagram Journey to Self Discovery in May of 2017, I read this book. At first, I thought I had stumbled upon some weird theory. I asked myself, What was I thinking and why had I ordered this book?