Bergson's theory of rhythm is peculiarly illuminating in this connection. The intellect, he says, is like a cinematograph. Moving at a certain pace, it takes certain views, snapshots of the continuous flux of reality, of which it is itself a moving part. The special views that it picks out and registers, depend entirely upon the relation between its movement and the rhythm or movement of other aspects of the flux. It is obvious that there are a variety of rhythms or tensions of duration. For example, in what is the fraction of a second of our own duration, hundreds of millions of vibrations, which it would need thousands of our years to count, are taking place successively in matter, and giving us the sensation of light. It is therefore clear that there is a great difference between the rhythm of our own duration and the incredibly rapid rhythms of physical matter. If an alteration took place in our rhythm, these same physical movements would make us conscious—not of light—but of some other thing quite unknown.
"Would not the whole of history," asks Bergson, "be contained in a very short time for a consciousness at a higher degree of tension than our own?" A momentary quickening of rhythm might thus account for the sensation of timelessness, of the "participation in Eternity" so often described by the mystic as a part of the Vision of God.
Again, Bergson points out that there is nothing but movement; that the idea of rest is an illusion, produced when we and the thing we are looking at are moving at the same speed, as when two railway trains run side by side in the same direction. Here, once more, may not the mystic sensation of "stillness," of being at one with the central Life, be owing to some change having taken place in the spiritual rhythm of the seer, approximating it to that of the Reality which he is thus enabled to perceive, so that the fretful movement of the individual mind becomes merged in the wider flow of the whole, and both seem to be at rest?
Thus, the most recent philosophy throws light on the most ancient mystic teaching, and both point to the conclusion that our normal waking consciousness is but one special type of many other forms of consciousness, by which we are surrounded, but from which we are, most of us, physically and psychically screened. We know that the consciousness of the individual self was a late development in the race; it is at least possible that the attainment of the consciousness that this individual self forms part of a larger Whole, may prove to be yet another step forward in the evolution of the human spirit. If this be so, the mystics would appear to be those who, living with an intensity greater than their fellows, are thus enabled to catch the first gleams of the realisation of a greater self. In any case, it would seem certain, judging from their testimony, that it is possible, by applying a certain stimulus, to gain knowledge of another order of consciousness of a rare and vivifying quality. Those who have attained to this knowledge all record that it must be felt to be understood, but that, so far as words are of use, it is ever of the nature of a reconciliation; of discord blending into harmony, of difference merging into unity.
Bibliography
NOTE.—The literature on mysticism is growing very large, and the following is only a small selection from the general works on it. In the case of individual writers, references are given only where there might be difficulty about editions. Thus no references are given to the works of Burke, Carlyle, Wordsworth, Shelley, Tennyson, Browning, etc.
General
Underhill, Evelyn. Mysticism, Methuen, 1911. (See the valuable Bibliography of mystical works, pp. 563-585.) The Mystic Way, Dent, 1913.
Jones, Rufus M. Studies in Mystical Religion, Macmillan, 1909.
James, William. The Varieties of Religious Experience, Longmans Green, 1905.