Ancient Iranian religion was strongly connected. Beginning in the early 10th-century BC, the ancient Iranian religion was gradually displaced by Zoroastrianism, which contains many essential aspects of its predecessor. The sources on ancient Iranian religion, though limited, consist of textual and material sources. The textual sources are both Iranian and non-Iranian. An important Iranian source is the Avesta, which are Zoroastrian sacred scriptures made in the Avestan. This is considered the principal source of knowledge on ancient Iranian religions. It is a collection of several texts that seems to have been over a large span of time by a variety of authors. These
Invading the Sacred Courtright's sexual interpretation of Gaṇeśa." According to Das, criticism of "Freudian psychoanalysis as a surrogate religion" are as old as psycho-analusis itself, and the criticism of "Invading the Sacred" is therefor not surprising. In critique of the book, Das notes a "failure to distinguish properly between academia and public life outside this." Das further notes that Das also notes a lack of academic qualifications, and a lack of scholarly rigor, by the authors of "Invading the Sacred". He raises concerns with the author's inability to use primary materials: Das further notes that "[n]ot only sound analysis of primary sources, but