I do believe that enduring geological features are important, though I don't think I can be clear about exactly why.
Tracy KidderHow could a just God permit great misery? The Haitian peasants answered with a proverb: "Bondye konn bay, men li pa konn separe," in literal translation, "God gives but doesn't share." This meant... God gives us humans everything we need to flourish, but he's not the one who's supposed to divvy up the loot. That charge was laid upon us.
Tracy Kidder