Is it possible in the modern world to live a life of peace and joy, free from tension, anxiety, fear and frustration? We are worried for lack of peace and order in the world or for our relationships with others, but we fail to realize that this world is our relationship with others. If we use our relationships without understanding ourselves, we create further confusion and disorder. When one understands oneself, one understands the other, and out of that understanding comes love. Today, love is the missing factor. There is a lack of affection, of warmth in relationships. This lack of love, tenderness, generosity in relationships is the cause of lack of trust, peace and order. Understanding of the self, is therefore, of paramount importance. Without exploring the complete process of thought, feeling, and action in oneself, there cannot possibly be peace, order, and security. The study of oneself requires extraordinary awareness about what one does, without any judgement, condemnation, admiration, or blame. Right action comes through understanding the process of oneself. Self-knowledge is the beginning of wisdom, it is a field of affection, warmth, and love. This book is a step by step guide to understand oneself through modern knowledge and ancient wisdom. It is based on first six chapters of the Bhagavad-Gita. The Bhagavad-Gita is an extraordinary articulation of the fundamental truth of Vedanta in very structured manner. In the Bhagavad-Gita, it takes eighteen chapters to unfold the ultimate truth. First six chapters talk about the real nature of the self, attaining blissful state as a consequence of that understanding, and the ways to experience the real self. The next six chapters, from chapter seven to chapter twelve, talk about the infinite splendour of the divinity and creation in its fullness. The final six chapters, chapter thirteen to eighteen, talk about the relationship between oneself and the infinite divinity. The best way to use this book is to read a page a day, and then to read the corresponding verses, which have been included in Devanagari as well as transliteration using ITRANS scheme using roman script for the readers not familiar with Devanagari script, and being transliteration of Sanskrit verses may give false spellcheck error. Translation of verses in English along with word to word translation is also included. Deeply think about the real meaning of the verses, and try to interpret your own meaning. By the grace of God you will receive more light from within based on your current state of understanding of the truth, and greater, and ever greater, understanding of the truth will be revealed to your mind. This is the sole objective, with which this work is offered at the feet of the Lord present in you.