Based on four broadcast talks, this book is the author's attempt to convey the great spiritual truths of religion to the general reader. Spirituality, the author writes is not to be confused with religiosity or some other-worldly lifetsyle, but it lies at the heart of all religious expression. It is an approach to life that emphasizes the primacy of the inner, mystical world, a world in which there is a sense of coherence, tranquillity and happiness. This book describes the mystical experience of humanity, painting a picture of the fulfilment awaiting every individual who ventures into the world of the spirit. In 1921, Evelyn Underhill was Upton Lecturer on the Philosophy of Religion at Manchester College, Oxford, the first woman to give a series of lectures on theology at Oxford. But, it was her writing that brought her an international reputation and a fellowship at King's College for Women. She also wrote "Mysticism".