Ninja'd by Capy's post here.

[quote=@Double Capybara]
<Snipped quote by Crispy Octopus>

I'd say that is relevant to the distance between the spheres. In Aristotlean's stuff, everything below the moon (air and fire) are more reachable than everything up in the stars. Perhaps dividing it in four areas overall, with an upper celestial (stars and sun and stuff) lower celestial (wind and thunder and maybe the moon and stuff) upper chthonic (forests and rivers and shadows and stuff) and lower chthonic (underworld and magma and Cthulhu and stuff), indicating closeness to Galbar and ease of mortal access, could work?
[/quote]

Four divisions is probably too much. This makes me awfully tempted to follow the original suggestion of having 'lower', 'upper', and 'middle' gods. Rewording the OP could make it so that these 'middle' Spheres like the bottom of the ocean and the upper parts of the sky are indeed much easier to reach than the ones like the underworld or moon. In these cases, the barriers would be more physical than magical.

Does this seem like a good solution?