André Nataf writes, in The Wordsworth Dictionary of the Occult (1988),

At the heart of hermetism lies androgyny. Androgyny or hermaphroditism is an awareness of one’s bisexuality and is the ultimate goal of the alchemist’s search. All the disciplines grouped under the general heading of hermetism or occultism—magic, alchemy, initiation, etc.—suppose that the human being, once he is rid of his innermost darkness and lack of understanding, realizes that he is bisexual. This bisexuality is what enables him to relate to other people and the universe. From this point of view, the hermaphrodite symbolizes bisexuality controlled, refined, and harmoniously integrated.

There it is, plain as day. Did you notice the occult view of heterosexuality in the above passage? Darkness.

The rainbow bridge to Luciferian enlightenment...