So we are forced to ask ourselves, what is the essential element in spiritual experience? Which of the many states and revelations described by the mystics are integral parts of it; and what do these states and degrees come to, when we describe them in the current phraseology and strip off the monastic robes in which they are usually dressed? What elements are due to the suggestions of tradition, to conscious or unconscious symbolism, to the misinterpretation of emotion, to the invasion of cravings from the lower centres, or the disguised fulfilment of an unconscious wish? And when all these channels of illusion have been blocked, what is left? This will be a difficult and often a painful enquiry. But it is an enquiry which ought to be faced by all who believe in the validity of man’s spiritual experience; in order that their faith may be established on a firm basis, and disentangled from those unreal and impermanent elements which are certainly destined to destruction, and with which it is at present too often confused. I am sure that at the present moment we serve best the highest interests of the soul by subjecting the whole mass of material which is called “mysticism” to an inexorable criticism. Only by inflicting the faithful wounds of a friend can we save the science of the inner life from mutilation at the hands of the psychologists. We will begin, then, with the central fact of the mystic’s experience. This central fact, it seems to me, is an overwhelming consciousness of God and of his own soul: a consciousness which absorbs or eclipses all other centres of interest. It is said that St. Francis of Assisi, praying in the house of Bernard of Quintavalle, was heard to say again and again: “My God! my God! what art Thou? and what am I?” Though the words come from St. Augustine, they well represent his mental attitude. This was the only question which he thought worth asking; and it is the question which every mystic asks at the beginning and sometimes answers at the end of his quest. Hence we must put first among our essentials the clear conviction of a living God as the primary interest of consciousness, and of a personal self capable of communion with Him. Having said this, however, we may allow that the widest latitude is possible in the mystic’s conception of his Deity. At best this conception will be symbolic; his experience, if genuine, will far transcend the symbols he employs. “God,” says the author of _The Cloud of Unknowing_, “may well be loved but not thought.” Credal forms, therefore, can only be for the mystic a scaffold by which he ascends. We are even bound, I think, to confess that the overt recognition of that which orthodox Christians generally mean by a personal God is not essential. On the contrary, where it takes a crudely anthropomorphic form, the idea of personality may be a disadvantage; opening the way for the intrusion of disguised emotions and desires. In the highest