Soh's Spirit Form + another hint that she was a former Yoshiro + a Forgotten Goddess

crystal orb inside?

 

Looks like a Tamagushi.

The colors of Cursed Soh

Sacred Tamagushi Mazo tasliman that increases Soh's attack power according to the amount of crystals.

Numerous theories have been advanced to explain the origin of the tamagushi; and the most common holds that the tamagushi was originally a yorishiro (an object in which the kami reside), a physical object expressing the indwelling spirit of a kami.

Soh is the former Yoshiro and former Maiden.

I consider this fact now as there's enough evidence presented on my blog but I'll definitely make a post listing everything concisely.

Yoshiro is also the 'Body of the Goddess' with Soh being the Spirit.
Played by different Maidens, the former walking the Path and the latter having walked the Path.
(Possible reincarnation?)

But another interesting thing is the villagers variation. Titled Forgotten God.

Cursed Soh/Defilement colors.

I can probably add 'Cliff Maiden' here as well since we receive it after we beat Cursed Soh the first time.

Those colors again. The bumps remind me of Soh's spirit form.

One more might be added here. It's Uncontrolled Spirit, the final Mazo talisman you get.

The Maiden, The Priest and Death.

Could it be this again? This shows up in defilement, in the final boss and possibly the final Mazo talisman.