"Interestingly, the author uses buzzwords also associated with those who study the occult such as 'enlightenment'."
In Orthodox Christianity, the newly baptized are said to be enlightened. So the concept of enlightenment is not owned by devotees of the occult.
Interesting note. I haven't studied Eastern Orthodox belief as much as simply Scripture. I don't find the word "enlightenment" or "enlightened" in Strong's Concordance, but simple searches regarding the word associated with spirit lead to New Age and numerous other belief systems outside of Christianity. I find issues such as spiritual baptism and new birth or rebirth or regeneration to be Scripturally based, but in the author's context, it appears he avoids that association in favor of an alternate religious belief.