India can rightfully be considered the spiritual laboratory of humanity. It contains all world religions: Buddhism, Christianity and Islam, as well as several national ones: Hinduism, Jainism, Sikhism, which coexist with primitive beliefs. This hidden, timeless world of spiritual values, preserving the continuity of development since primitive times, was destroyed neither by the invasion of technogenic civilization, nor by wars and revolutions that swept through the world. The lessons of India should be heeded as the instructions of a wise interlocutor. This book, addressed to a wide readership, introduces this most religiously brilliant people on earth and its spiritual achievements.