The variety of applications of the term "mysticism" has forced me to restrict myself here to a discussion of that philosophical type of mysticism which concerns itself with questions of ultimate reality. My aim, too, has been to consider this subject in connection with great English writers. I have had, therefore, to exclude, with regret, the literature of America, so rich in mystical thought.
I wish to thank Mr John Murray for kind permission to make use of an article of mine which appeared in the Quarterly Review, and also Dr Ward and Mr Waller for similar permission with regard to certain passages in a chapter of the Cambridge History of English Literature, vol. ix.