Alchemical Symbolism in the VMS

[Barbrey]

Yes, but...
Dying refers to death. Dyeing refers to the use of dye to color something.
So, what is a ' spiritual and dyeing earth'? How does that work?

The verb seems to be: tingo, tingere, tinxi, tinctum
Meaning to dip, soak, dye or color. Figuratively meaning to imbue.

Given that alchemy is all hocus-pocus, 'imbuing' might read better, but what does that mean?

Alchemy started with dyeing so it might mean just that. No idea what the phrase would mean, sounds like more code. It’s never nonsense, though, just code. 50% of it is in code, even when the writer says they’ll explain it all in simple terms!  Never believe them!

Later it talks about “fixing” this substance: as spiritual could mean volatile or “lively”,  and dyeing would mean colour-changing, I’d guess the meaning might be the substance would be unable to change either colour or nature after fixation. But I’m just guessing.