। ॥ ११४ ॥
In plain words
Pure consciousness, reflected in the buddhi — the finest distillate of that inner instrument: this is what the earliest teachers called the jīva, the one who makes the flash of "I am" arise in the body.
Close to the Sanskrit
That pure consciousness which is reflected in the intellect, which is the essence of that — that is called the jīva by the ancient ones, the one who produces in the body the flash 'I am'.