अधिष्ठानं चिदाभासो बुद्धिरेतत्त्रयं यदा ।अज्ञानादेकवद्भाति जीव इत्युच्यते तदा ॥ ३६ ॥
In plain words
The ground, the reflected light of consciousness, and the intellect: when ignorance makes these three appear as one thing, that one thing is called the jīva — the individual self.
Close to the Sanskrit
The substratum, the reflection of consciousness, the intellect — when this triad, through ignorance, appears as one, then it is called the jīva.