Depravity typically has many branches.
For most, being depraved is like being surrounded by a layer of bark.
Roots branch and spread out widely; they serve to anchor the depraved and extract energy.
Above, branches divide into smaller branches and capture energy for the depraved, allowing their growth.
Using the NaPoWriMo prompt for day twelve, I selected the tangible word tree and replaced it with the intangible word depravity and used a few sentences from Wikipedia which I doctored up a bit to help with flow.