Another poem, "Morphia", has no
ostensible reference to Russia, but the insight into the
psychology of the "addict" was indubitably conferred by my
illumination. I had no experience, even at second hand, of the
effects of the drug; yet I was assured by a distinguished man of
letters who had himself suffered from its malice, that I have
expressed to the utmost the terrific truth. He could hardly
believe at first that I had written it without actual knowledge
— The Confessions of Aleister Crowley.
New York, NY. Hill and Wang, 1969. Page 714.