यदा हि नेन्द्रियार्थेषु न कर्मस्वनुषज्जते।
6.4 Verily, [Verily: This word emphasizes the fact that, since attachment to sense objects like sound etc. and to actions is an obstacle in the path of Yoga, therefore the removal of that obstruction is the means to its attainment.] when a man who has given up thought about everything does not get attached to sense-objects or acitons, he is then said to be established in Yoga.
6.4 When a man is not attached to the sense-objects or to actions, having renounced all thoughts, then he is said to have attained to Yoga.
6.4. When, a person indulges himself neither in what is desired by the senses nor in the actions [for it], then [alone], being a man renouncing all intentions, he is said to have mounted on the Yoga.
Yadaa hi nendriyaartheshu na karmaswanushajjate; Sarvasankalpasannyaasee yogaaroodhas tadochyate.
yadā—when; hi—certainly; na—not; indriya-artheṣhu—for sense-objects; na—not; karmasu—to actions; anuṣhajjate—is attachment; sarva-saṅkalpa—all desires for the fruits of actions; sanyāsī—renouncer; yoga-ārūḍhaḥ—elevated in the science of Yog; tadā—at that time; uchyate—is said