A book of inspirational and spiritual life lessons from the star of NBC's "This Is Us" examines the role of authenticity and sincerity in her successes, encouraging readers to claim their rightful places in a world that constantly undermines individuals.

One afternoon, actor Zachary Levi couldn't bring himself to open his front door. Where are you going, Zac? Where are you taking us? What are we doing here? But he wasn't worried about what other people might do to him, he was worried about what he might do to himself. And that realization terrified him. Here, Zac shares his story of grappling with a lifetime of sometimes crippling anxiety and depression, including a one-month stint in a trauma therapy...