। ॥ ४९ ॥
In plain words
That alone is what the Vedānta texts establish here—not duality, and nothing inert. Non-dual consciousness is happiness in its very nature; the unreal and inert is suffering in its very nature.
Close to the Sanskrit
That alone is here to be established by the Vedānta texts — not duality, not the inert. Non-dual consciousness has happiness for its nature; the unreal and inert has suffering for its nature.