Therefore, at all times remember Me and fight. With mind and intellect dedicated to Me, you will doubtless come to Me.

Practical application: anusmara — “remember after/keep remembering” — continuous presence of Kṛṣṇa. And yudhya ca — and fight. Not ascetic withdrawal, but action with divine memory.

Arpita-mano-buddhiḥ — mind and intellect offered/consecrated (arpita) to Kṛṣṇa. Yoga is uniting (yuj) the instrument (mind) to the divine object.