rests upon

• supportsSustains or reinforces
• foundationUnderlying support structure
• bedrockSolid stone underground
• hinges onIs contingent upon
• built onConstructed using as foundation

anchored · based on · pillars · underpinning · leans on · settles · perches · shoulders · cornerstone · assumption · premise · trust · weight · burden · balance · precarious · stable · rooted