I have received much help from many kind friends; and though some of them would not wish to be associated with all of my opinions, I cannot deny myself the pleasure of thanking them by name. From my mother and other members of my family, and relations, especially Mr. W.W. How, Fellow of Merton, I have received many useful suggestions. Three past or present colleagues have read and criticised parts of my work--the Rev. H. Rashdall, now Fellow of New College; Mr. H.A. Prichard, now Fellow of Trinity; and Mr. H.H. Williams, Fellow of Hertford. Mr. G.L. Dickinson, Fellow of King's College, Cambridge, lent me an unpublished dissertation on Plotinus. The Rev. C. Bigg, D.D., whose Bampton Lectures on the Christian Platonists are known all over Europe, did me the kindness to read the whole of the eight Lectures, and so added to the great debt which I owe to him for his books. The Rev. J.M. Heald, formerly Scholar of Trinity, Cambridge, lent me many books from his fine library, and by inquiring for me at Louvain enabled me to procure the books on Mysticism which are now studied in Roman Catholic Universities. The Rev. Dr. Lindsay, who has made a special study of the German mystics, read my Lectures on that period, and wrote me a very useful letter upon them. Miss G.H. Warrack of Edinburgh kindly allowed me to use her modernised version of Julian of Norwich. I have ventured to say in my last Lecture--and it is my earnest conviction--that a more general acquaintance with mystical theology and philosophy is very desirable in the interests of the English Church at the present time. I am not one of those who think that the points at issue between Anglo-Catholics and Anglo-Protestants are trivial: history has always confirmed Aristotle's famous dictum about parties--[Greek: gignontai ai staseis ou peri mikrôn all' ek mikrôn, stasiazousi de peri megalôn]--but I do not so far despair of our Church, or of Christianity, as to doubt that a reconciling principle must and will be found. Those who do me the honour to read these Lectures will see to what quarter I look for a mediator. A very short study would be sufficient to dispel some of the prejudices which still hang round the name of Mysticism--e.g., that its professors are unpractical dreamers, and that this type of religion is antagonistic to the English mind. As a matter of fact, all the great mystics have been energetic and influential, and their business capacity is specially noted in a curiously large number of cases. For instance, Plotinus was often in request as a guardian and trustee; St. Bernard showed great gifts as an organiser; St. Teresa, as a founder of convents and administrator, gave evidence of extraordinary practical ability; even St. Juan of the Cross displayed the same qualities; John Smith was an excellent bursar of his college; Fénelon ruled his diocese extremely well; and Madame Guyon surprised those who had dealings with her by her great aptitude for affairs. Henry More was