यदा विनियतं चित्तमात्मन्येवावतिष्ठते | निःस्पृहः सर्वकामेभ्यो युक्त इत्युच्यते तदा ||६-१८||
yadā viniyataṃ cittamātmanyevāvatiṣṭhate . niḥspṛhaḥ sarvakāmebhyo yukta ityucyate tadā ||6-18||
6.18. When [his] well-controlled mind gets established in nothing but the Self and he is free from craving for any desired object-at that time his is called a master of Yoga.
Shri Purohit Swami
6.18 When the mind, completely controlled, is centered in the Self, and free from all earthly desires, then is the man truly spiritual.
Sri Abhinav Gupta
6.18 Yada etc. The distinguishing mark of this man of Yoga is : Havnig his mind controlled in nothing but the Self, he does not crave at all [for anything].
6.18 When the mind which usually goes after sense enjoyments, abandons such desires and ‘rests on the self alone,’ i.e., becomes well-settled on account of discerning unsurpassable good in the self alone and rests there alone steadily, without movement - then, being ‘free of yearning for all desires,’ one is said to be integrated. He is said to be fit for Yoga.
6.18 A yogi, nihsprhah, who has become free from hankering, thirst; sarva-kamhyah, for all desirable objects, seen and unseen; is tada, then; ucyate, said to be; yuktah, Self-absorbed; yada, when; the viniyatam, controlled; cittam, mind, the mind that has been made fully one-pointed by giving up thought of external objects; avatisthate, rests; atmani eva, in the non-dual Self alone, i.e. he gets established in his own Self. An illustration in being given for the mind of that yogi which has become Self-absorbed:
6.18 When the subdued mind rests on the self alone, then, free of all yearning for objects of desire, one is said to be fit for Yoga.
6.18 A man who has become free from hankering for all desirable objects is then said to be Self-absorbed when the controlled mind rests in the Self alone.
6.18 When the perfectly controlled mind rests in the Self only, free from longing for all the objects of desires, then it is said, ‘He is united’.
6.18 यदा when? विनियतम् perfectly controlled? चित्तम् mind? आत्मनि in the Self? एव only? अवतिष्ठते rests? निःस्पृहः free from longing? सर्वकामेभ्यः from all (objects of) desires? युक्तः united? इति thus? उच्यते is said? तदा then.Commentary Perfectly controlled mind The mind with onepointedness.When all desires for the objects of pleasure seen or unseen die? the mind becomes very peaceful and rests steadily in the Supreme Self within. As the Yogi is perfectly harmonised? as he has attained to oneness with the Self and as he has become identical with Brahman? sense phenomena and bodily affections do not disturb him. He is conscious of his immortal? imperishable and invincible nature.Yukta means united (with the Self) or harmonised or balanced. Without union with the Self neither harmony nor balance nor Samadhi is possible. (Cf.V.23VI.8)