Bhagavad Gita Chapter 8, Verse 6

तस्मात्सर्वेषु कालेषु मामनुस्मर युध्य च | मय्यर्पितमनोबुद्धिर्मामेवैष्यस्यसंशयम् ||

tasmāt sarveṣu kāleṣu mām anusmara yudhya ca mayy arpita-mano-buddhir mām evaiṣyasi asaṁśayam

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

Krishna gives the practical instruction: 'Tasmat sarveshu kaleshu mam anusmara yudhya cha'—therefore (tasmat), at all times (sarveshu kaleshu), remember (anusmara) Me (mam) and fight (yudhya). This is the synthesis: remember Krishna while performing your duty. You don't withdraw from action—you act while remembering. 'Mayy arpita-mano-buddhir mam evaishyasi asamshayam'—with your mind (manah) and intellect (buddhih) dedicated (arpita) to Me (mayi), you will certainly (asamshayam) come (eshysi) to Me alone (mam eva). This is the path: constant remembrance while acting. Don't wait until death to remember—remember now, while fighting, while working, while living. This constant remembrance becomes your natural state, so at death you naturally remember Krishna.