There are multiple realms within the kingdoms. The Underworld and Heavenly realm are the bigger well, known ones. Smaller domains exist. Usually, nymphs, deities, and Gods on the lower totem pole reside in them.
The human realm is one where mortals reside, which Gods have since abandoned their realm, but for the Underworld and the Heavenly realm, a balance must be followed.
Once a human dies, their soul will either go between either realm. If the balance of power leans one way, it can cause problems, such as portals opening and demons causing havoc.
Since many Gods and Goddesses have left the human realm, there has been an increase of souls coming to the Underworld due to the rise of sin. To combat such an issue, Gods will send the lower ones to perform blessings, miracles, and such to sway the good to remain pure and have their soul come to the Heavenly realm when they die.
