। ॥ ३८ ॥
In plain words
That “ta” is Viṣaya-adhyāsa, objecthood laid over what is not an object, like a hibiscus casting red onto a clear crystal. When every knowable object is let go, Jñāna—knowing itself—stands alone.
Close to the Sanskrit
The syllable “ta” is Viṣaya-adhyāsa—the superimposition of an object—as the red of a hibiscus is on a crystal. With the complete relinquishing of the knowable object, Jñāna alone remains.