Defining what matters to you and actively choosing to pursue that direction is what this book is ultimately all about. Although the defusion, mindfulness, and acceptance exercises you’ve explored are useful in themselves, this information is an empty shell if it isn’t used in the service of living a meaningful life.Steven C. HayesThe Author of this QuoteAuthorSteven C. HayesFoundation Prof Emeritus of Psychology at UNR. He originated & co-developed Acceptance and Commitment Therapy & Relational Frame Theory.