Have you ever wondered what mysticism is? This text attempts to answer this and many other questions and presents an objective study of the subjective mystical experience. Including selected texts from both well-known and some more unfamiliar mystics, the author suggests an explanation of an essentially personal experience. The book attempts to provide answers to the following questions: what is mysticism?; why do people seek mystical experience?; how can the essence of mysticism be communicated?; what are the stages on the way of Divine Union?; and why is mysticism such a universal phenomenon?