one who eats and sleeps suitably or one who is in yoga with the Divine in food and in sleeping.
(cf.) Gita 6.17
युक्ताहारविहारस्य युक्तचेष्टस्य कर्मसु । युक्तस्वप्नावबोधस्य योगो भवति दुःखहा ॥
yuktāhāravihārasya yuktaceṣṭasya karmasu, yuktasvapnāvabodhasya yogo bhavati duḥkhahā.
Yoga destroys all sorrow for him in whom the sleep and waking, the food, the play, the putting forth of effort in works are all yukta.