What's a synonym for transcend, but in a downward (metaphorical) direction?
Subsume is the word.
I'm with @RegDwigнt on how bad this sentence is, or is trying to be. However I cannot resist a challenge.
The word you are looking for is Subsume, (not far from subtend). While transcend means to rise above and away from, subsume means to take on or integrate the item with itself. Quite the other end of the scale.