Physical things can reach consciousness--if at all--only through the brain; that remains true as regards physical things, however much we may admit telepathy from other minds; and, conversely, only through the brain can we operate with conscious purpose on the material world. To any more direct mental or spiritual intercourse we are, unless specially awakened, temporarily dead or asleep. There is some inversion of ordinary ideas here, for a state of trance appears to rouse or free the dormant faculties, and to render direct intercourse more possible. At any rate it does this for some people. For we find here and there, a few perfectly sane individuals, from whom, when in a rather exceptional state, the customary brain-limitation seems to be withdrawn or withdrawable. Their minds cease to be isolated for a time, and are accessible to more direct influences. Not the familiar part of their minds, not the part accustomed to operate and to be operated on by the habitually used portion of brain, no, but what is called a subliminal stratum of mind, a part only accessible perhaps to physical things through an ordinarily unused and only subconscious portion of the brain. The occurrence of such people, _i.e._ of people with such exceptional and really simple faculties, could not have been predicted or expected on a basis of everyday experience; but if evidence is forthcoming for their existence--even although it be not quite of an ordinary character--and if we can make examination of the subject-matter and criticise the statements of fact which are thus receivable, there is no sort of sense in opposing the facts by adducing preconceived negative opinions about impossibility, and declining to look into the evidence or judge of the results. There were people once who would not look at the satellites of Jupiter, lest their cherished convictions should be disturbed. There was a mathematician not long ago who would not see an experimental demonstration of conical refraction, lest if it failed his confidence in refined optical theory should be upset. And so, strange to say, there are people to-day who deny the fact, and condemn the investigation, of any manner of communication outside the realm of ordinary commonplace experience: having no ground at all for their denial save prejudice. Well, like other little systems, they have their day and cease to be. We need not attend to them overmuch. If the facts of the Universe have come within our contemplation, a certain amount of contemporary blindness, though it may surprise, need not perplex us. The study of the material side of things, under the limitations appropriate thereto, has done splendid service. Only gradually can mental scope be enlarged to take in not only all this but more also.