Gnosticism professes some very profound systems. It doesn't do any good reading them word for word and trying to extract a meaning. That's not how they are contructed. Calling them sub-Lovecraftian is particularly inane since they were around centuries before Lovecraft and Lovecraft wrote his stories before the discovery of the Nag Hammadi Library. The parallels are disturbing.

What makes Moby Dick a gnostic work is the way it is contructed: Ishmael leaves Manhatto, goes to New Bedford on a cold winter night, almost enters a black chuech by mistake, finds lodgings at the Spouter Inn, shares bed with Queequeg, departs for Nantucket in the morning after visiting the Whalemen's Chapel. Doesn't sound like anything Gnostic but if you understand the Gnostic systems, it's shocklingly Gnostic.

And, no, this does not work with any good writings today. And that's aside from the fact that there are no good writings today.