Mark Passio briefly covers Theosophy. He bifurcates occult knowledge into Light and Dark Occultism. It is important to note, that Christians have been aware of this explanation, and in their polemics have rejected this dualism, for the idea, that there is no light and dark occultism. For many, there is only the Nicene creed and everybody else. In Occult Philosophy, this position of Light and Dark Occultism is founded upon ideas about the nature of the ultimate SUBSTANCE or ROOT-MATTER, the higher Essences and “lower ranges.”
There are very few speakers who would actually defend Theosophy.
I hope people can be adults and have a mature discussion about this.