Truth; dark Satya Impure is a lie
In the tattva systems of Shaivism, tattvas are held to be meditative or introspective tools. A practitioner can increase or decrease them as needed to what suits their practice. Likewise, this is a representation of ourselves as an interconnected series of rising complexities.
But it kept bothering me... the lyrics, something I had read in the comments. I just had to kind of maul over it a bit more and introspect on it. I wasn't happy to keep doing my normal routine.
The Left Hand Path is actually where a lot of bridging and common ground comes along for Satanism and Kashmir Shaivism. Not just with the self-deification but just generally with practice.