out a base in either facts or logic. For some writers a 'mystic' is any person who believes in thought-transference, or spirit-return. Employed in this way the word has little value: there are too many less ambiguous synonyms. So, to keep it useful by restricting it, I will do what I did in the case of the word 'religion,' and simply propose to you four marks which, when an experience has them, may justify us in calling it mystical for the purpose of the present lectures. In this way we shall save verbal disputation, and the recriminations that generally go therewith.
1. Ineffability.—The handiest of the marks by which I classify a state of mind as mystical is negative. The subject of it immediately says that it defies expression, that no adequate report of its contents can be given in words. It follows from this that its quality must be directly experienced; it cannot be imparted or transferred to others. In this peculiarity mystical states are more like states of feeling than like states of intellect. No one can make clear to another who has never had a certain feeling, in what the quality or worth of it consists. One must have musical ears to know the value of a symphony; one must have been in love one's self to understand a lover's state of mind. Lacking the heart or ear, we cannot interpret the musician or the lover justly, and are even likely to consider him weak-minded or absurd. The mystic finds that most of us accord to his experiences an equally incompetent treatment.
2. Noetic quality.—Although so similar to states of feeling, mystical states seem to those who experience them to be also states of knowledge. They are states of insight into depths of truth unplumbed by the discursive intellect. They are illuminations, revelations, full of significance and importance, all inarticulate though they