Islam teaches the opposite of the Roman Catholic church exposing it has the lie of the harlot. Islam reduces Catholicism to the Book of Lies, which is what Aleister Crowley also thought of the Christian church. Crowley no stranger to controversy, studied Islam, and put Muhammed as one of the world's greatest prophets, with Crowley being the final world prophet. A sect of the Crowley followers, called Thelemites, believe Crowley embraced some form of Islam, since Crowley recited verses of the Holy Quran to perform a feat of magic. Some meditation exercises were simply borrowed from the Sufis. Crowley accepted the version of the Holy Quran, which stated Jesus did not die on the cross, he also believed there was no crucifixion.
Few realise these strange facts. We are no fan of Crowleyism or the doctrines of Thelema. There are a few amongst them though that recognise the Prophet Muhammed and elements of Islam.
Crowley's admiration for Islam is no particular secret.
In Magick Without Tears, he wrote:
The most important of all of the efforts of the White School, from an exoteric point of view, is Islam. In its doctrine there is some slight taint, but much less than in Christianity. It is a virile religion. It looks facts in the face, and admits their horror; but it proposes to overcome them by sheer dint of manhood. Unfortunately, the metaphysical conceptions of its quasi-profane Schools are grossly materialistic. It is only the Pantheism of the Sufis which eliminates the conception of propitiation [characteristic of the Black School]; and, in practice, the Sufis are too closely allied to the Vedantists to retain hold of reality.
Crowley identified Mohammed, the Prophet of Islam, as a Saint of E.G.C. and a Magus of A.'.A.'., and Crowley directly compared his own relationship to the "praeterhuman intelligence...
However the Book of the Law, (Thelema literature) makes a negative comment about Jesus Christ and the Prophet Muhammed. But they believe we mis-interpret the plain text.
The article states about Crowley's interest in Islam:
As to my study of Islam, I got a sheikh to teach me Arabic and the practices of ablution, prayer and so on, so that at some future time I might pass for a Moslem among themselves. I learnt a number of chapters of the Koran by heart..... My sheikh was profoundly versed in the mysticism and magic of Islam, and discovering that I was an initiate, had no hesitation in providing me with books and manuscripts on the Arabic Cabbala. These formed the basis of my comparative studies.
Crowley also used to recite Surahs from the Holy Quran. We learn:
... in the desert of Algeria, where he consecrated himself daily with a thousand and one recitals of the sura Al-Ikhlas ("Pure Faith") from the Quran. Of course, it is well-known that in his later life, Crowley referred to the successor to his organizing authority as the "Caliph," the Arabic title denoting the successor of Mohammed as the leader of the Muslim community.
Crowley however contradicts himself in his book on Magic, Theory and Practice, where he instructs the use of the Eucharist for the practising magician. He continues to maintain the Eucharist despite not believing in the sacrifice of Jesus Christ. His church claims to be Gnostic. Instead it is a rehash of Babylonian mysteries although he has embraced elements of Sufi thought.