This book is a series of excerpts from the author's breakthrough book, The Power of Now, presented here for Spanish-language readers. Carefully arranged for maximum impact, the book includes all of the exercises and many of the most useful keys found in the original. Tolle gently but authoritatively guides the reader to a liberated mind and life by exploring the source of Chi, enlightened relationships, creative use of the mind, impermanence, and the cycle of life.