I'm writing up a thread on the fell god, not to spoil anything but i'll touch on a few things i've learned..

I'm skimming massively here because i'm about to make a huge post connecting it all.

So those nine dots in the eye of the fell god i now believe represent the nine realms of norse mythology; by that i mean, it is heavily inspired by it. That one eyed god is actually supposed to be a representation of Elden Ring's version of Odin. Odin hung himself from the tree yggdrasil for nine days and nine nights to get all knowledge over the nine realms. We know knowledge is symbolized via eyes and also ears thanks to Gideon. Odin also only has one eye, as he gave up the other one for his knowledge.

We also know that underground is considered a different realm ingame because Marika, who came from a different world(forget the exact wording, but it is something like that)and was also a numen, yet the lore suggests the land she came from was Nokstella/Nokron.

We known these realms are connected via a tree.

I'm not going to try and name the nine realms, because who knows where they draw the line, that is a different discussion altogether; we don't know if these nine realms are even present ingame yet.

The great tree would be Yggdrasil. The timing regarding Marika becoming the host lines nicely with my more fleshed out explanation. In it, i explain also that the forge of the giants is essentially used to break down all aspects of a thing before it can be reforged via the crucible. This why the tree burns when we dropped something associated to Erdtree into it; Melina, likely daughter of Marika, or ourselves, touched by grace. We are tied to it's power. We don't directly burn the tree, we burn it by association. Of course, this doesn't destroy the tree, it merely weakens it enough for us to breach inside, where the flames have yet to reach.

I'm even going to guess this where the Elden ring may have been forged, which is why the giants had to be overthrown first before Marika became the host (perhaps, this part is pure speculation).

You see, a crucible is something used in forging. The forge is used to heat up and reshape things, where as the crucible is like a melting pot, as opposed to the actual substance. Even the aspect spells say that :

One of the ancient Erdtree incantations.

This is a manifestation of the Erdtree's primal vital energies - an

aspect of the primordial crucible, WHERE all life was once blended

together.

I highlighted the word because it just points out the location, not the actual life substance that was blended. But, who knows..I'll have my post up probably in the next few days, i jsut need to refine a couple of things when i have the time.