This book offers us deep insight into our mind, and shows how an understanding of its nature and functions can be used practically in everyday experience to improve our lives.Part 1 is a practical guide to developing and maintaining a light, positive mind - showing how to recognize and abandon states of mind that harm us, and to replace them with peaceful and beneficial ones.Part 2 describes different types of mind in detail, revealing the depth and profundity of the Buddhist understanding of the mind. It concludes with a detailed explanation of meditation, showing how by controlling and transforming our mind we can attain a lasting state of joy, independent of external conditions.