u saw that wonderful place?"

"Yes. There is nothing odd about that, because you told me that you
would take me into the chamber to-night. I went to sleep with the
desire to see the temple prominently present in my thoughts, and
consequently, in my dream, that wish was gratified. But now I am
anxious to verify my vision, to note how much resemblance there will
be between the real and the imaginary. It would be very curious if I
should be able to recognize the place!"

Leon looked away off into space, as one gazes at nothing when deeply
absorbed in the contemplation of some perplexing problem. The Doctor
at once recognized the danger that presented. Leon's memory was more
vivid than he had intended it to be. If taken into the crypt, in his
present state of active inquiry into the phenomenon which his mind was
considering, and if he really should become convinced that what he
thought a dream was the exact counterpart of the real, it would not be
improbable that his suspicion of the truth might be aroused. It was
therefore essential that his mind should be led into a safer channel.
The Doctor undertook to do this.

"Leon," said he, "you are always interested in psychological
phenomena, and therefore I will discuss this with you. The action of
the mind is always an attractive study; attractive mainly because man
cannot thoroughly unravel the mysteries surrounding the working of a
human mind. Ordinarily, what one cannot comprehend and explain, is
written down as a miracle. There are no miracles, except as the words
may be used to describe that which mystifies. But the mystification
passes, as soon as the explanation is arrived at. Now it is manifestly
impossible that you should dream of a place which you have never seen,
and obtain an accurate mental image of it."

"I do not say that I have done so. I only wonder how much resemblance
will exist between the dream and the chamber itself."

"True! But I should not be at all surprised, when I take you there, if
you claim that it is the counterpart of your dream."

"Why do you think that, Doctor, when you have just said truly, that
such a fact would be impossible?"

"It would be impossible that such a thing should be a fact, but it is
not at all impossible that you should think it to be a fact. Let me
explain myself more clearly. As I said before, one cannot produce in
the mind an absolutely accurate image of a thing which he has never
seen. But mental images may be creat