In this book, experienced psychiatrist Daniel Siegel proves that the ability to focus on your inner world and consciousness can change your life for the better. With the help of scientific facts and inspiring stories of patients, the author clearly demonstrates how any person is able to understand and control the processes that affect thinking, behavior and relationships. The bibliography is posted on the website The book is intended for anyone who would like to get rid of obsessive thoughts, anxieties and worries, as well as learn more about the functioning of the brain. It is published in Russian for the first time.