This book contains 21 sermons that the author preached at Westminster Chapel (London). With great care and tender compassion, the author analyzes one of the undeniable characteristics of modern society, one which believers have not been able to avoid: depression. Lloyd-Jones writes, “On the contrary, Christians too often give the impression of being permanently sad, of being unhappy, lacking liberty and absent of joy. There is no doubt that this is the main reason why a large number of people are no longer interested in Christianity.” Lloyd-Jones reminds us that joy and happiness were one of the most attractive elements of Christianity in the first centuries. These sermons help us regain the spiritual vitality and the joy of being a Christian.