In everyday life we are baffled by the mystery of individuality of other people around us. This distinctness of personality and individuality is in fact as unique and distinct as are our fingerprints. The author has attempted to unravel the frequently asked mysterious questions: Why are some people happy and others gloomy? Why are some individuals productive and others destructive? Why are some people introverts and others extroverts; and why are some people criminals and others law-abiding? This book is written with the aim to promote our understanding of the most significant role of parents, family, teachers, mass media and the significant others in the unique personality development and character building of individuals of any society across the globe. Moreover, the last chapter of this book is devoted to the individualistic approach to understanding and treating epilepsy which is as mysterious as is our individuality. It is hoped that this book will be of immense value for the general public as well as the students and the professionals in the field of clinical psychology, applied psychology, psychiatry, social work, sociology, education and other allied disciplines.