sentences: "Jung had already been reading Eisler and went on to cite his work on Orphic symbolism in his 1935 essay “Dream Symbols and the Individuation Process” and subsequently in a lecture series on Nietzsche’s "Thus Spoke Zarathustra".The 1935 edition of the "Eranos Jahrbuch" ("Eranos Yearbook") published the paper he had presented in the form of an essay titled “"Das Rätsel des Johannesevangeliums"” (“The Riddle of the Gospel of John”).