Artificial intelligent assistant

What does “watermarked the moon” mean? The English lyrics of the song "A Requiem for Innocence", composed by Gao, from the soundtrack of the 2018 video game _The House in Fata Morgana: A Requiem for Innocence_ , include the line “Watermarked the moon, cast the hex”. I don’t know what it means. Even “cast the hex”, is it like “throw the witch” or “cast upon the witch a curse”? This is more of the lyrics for context: > No breathe in the wood, > The oaks are dead, the elms are sunk, > No faith shall save the witch > Watermarked the moon, cast the hex

_**Hex**_ is a spell, and I am sure you know what _**cast a spell**_ means.

As for _**watermark**_ , it means

> a design which is put into paper when it is made, and which you can only see if you hold the paper up to the light. Banknotes often have a watermark, to make them harder to copy illegally.(Collins)

Now, if you look at the moon it does seem it is watermarked with a mysterious design. However, one can't be sure if the author of this verse used the moon as a watermark, as a design to imprint on something as a logo, like:

![enter image description here](

or if he refers metaphorically to this watermarked-like complexion of the moon:

![enter image description here](

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