Worldsoul

A Worldsoul is the supernatural essence of many planes of the Multiverse. Worldsouls come in many forms, but commonalities between them is they are aware of nearly everything going on on their surface, they can be directly harmed by magical means, and they can physically manifest themselves in the form of avatars and elementals.

Feraguo
Religion on Feraguo is generally pantheist, identifying the plane itself (and more precisely its Worldsoul) as divine in nature, but the specific way this manifests varies between the different cultures in the setting.

The Horse Lords' shamans communicate with this Worldsoul using the spirits of the dead as intermediaries, as they have a better connection to it than the living. In Tianban and Izumito, people instead venerate those spirits as manifestations of the Worldsoul. In Marinton and further east, the Worldsoul is viewed as more abstract and impersonal, to be venerated but not directly or indirectly interacted with. The rail barons and devisers tend to pay lip service to religion but mostly ignore it, as their concerns are more material in nature.