यदा विनियतं चित्तमात्मन्येवावतिष्ठते । निःस्पृह: सर्वकामे भ्यो युक्त इत्युच्यते तदा,अत्यन्त वशमें किया हुआ चित्त जिस कालमें परमात्मामें ही भलीभाँति स्थित हो जाता है, उस कालमें सम्पूर्ण भोगोंसे स्पृहारहित पुरुष योगयुक्त है, ऐसा कहा जाता है
yadā viniyataṁ cittam ātmany evāvatiṣṭhate | niḥspṛhaḥ sarvakāmebhyo yukta ity ucyate tadā ||
Arjuna said: When the mind, fully disciplined, comes to rest steadily in the Self alone, and one becomes free from craving for all objects of desire, then—at that time—such a person is said to be ‘yoked’ (established in Yoga).
अर्जुन उवाच
A person is truly established in Yoga when the disciplined mind rests steadily in the Self and craving for all sense-objects and enjoyments has fallen away; inner stability and desirelessness are the marks of yogic integration.
Arjuna is asking about the defining signs of one who is firmly established in Yoga; this verse states the criterion in terms of mental restraint, inward abiding in the Self, and freedom from desire.