Dear Readers, I am extremely happy to see this book titled, “Quantum Science of Love, Healing, Happiness, and Bliss in Ancient Wisdom” in your hands. It is my firm belief that you have chosen to read this book with a specific aim in mind, and I assure you that you will not be disappointed. One can divide this book into six broad sections: The first section (chapter 1) consists of ‘Introduction’; the second section (chapters 2-5) deals with Love (in Hinduism, Buddhism, Sufism, and Christianity); the third section (chapters 6-9) describes the process of Healing (in Hinduism, Buddhism, Sufism, and Christianity); the fourth section (chapters 10-13) deals with Happiness (in Hinduism, Buddhism, Sufism, and Christianity); the fifth section (chapters 14-17) describes the concept of Bliss (in Hinduism, Buddhism, Sufism, and Christianity); and sixth and the final section on Quantum Science (Chapters 18-21) justifies the title of this book by correlating Quantum Science with Love, Healing, Happiness and Bliss in Ancient Wisdom. The coverage of each of these archetypes, viz., love, healing, happiness, and bliss, in various religions: Hinduism, Buddhism, Sufism, and Christianity, will truly appeal to all the readers across the globe. Chapter 1 titled, “Love, Healing, Happiness and Bliss: Introduction” is a must read for all those who wish to appreciate the rest of this book for introducing themselves about these archetypes in Hinduism, Buddhism, Sufism, and Christianity.