The Interpretation of Dreams of his most important dreams are his own — his method is inaugurated with an analysis of his dream "Irma's injection" — but many also come from patient case studies. "The Interpretation of Dreams" was first published in an edition of only 600 copies, and these took eight years to sell. The work subsequently gained popularity, and seven more editions were printed in Freud's lifetime, the last in 1929. The Swiss psychiatrist Eugen Bleuler wrote to Freud in October 1905 that he was convinced of the correctness of "The Interpretation of Dreams" as soon as he read it. Otto Rank
Dream interpretation interpreting dreams to the interpretation of reciting certain Surahs of the Qur'an in one's dream. He writes that it is important for a layperson to seek assistance from an alim (Muslim scholar) who could guide in the interpretation of dreams with a proper understanding of the cultural context and other such causes and interpretations. Al-Kindi (Alkindus) (801–873) also wrote a treatise on dream interpretation: "On Sleep and Dreams". In consciousness studies, Al-Farabi (872–951) wrote the "On the Cause of Dreams", which appeared as chapter 24 of his "Book of Opinions of the people of the Ideal City". It was a