Based on the revelation of the previous verse, Krishna tells Arjuna the only logical next step. Since the Supreme Lord is in your heart driving the machine, surrender unto Him utterly and completely (tam eva śaraṇaṁ gaccha sarva-bhāvena), with your entire being. What is the result? By His divine grace alone (tat-prasādāt), you will attain the ultimate, transcendental peace (parāṁ śāntiṁ) and eventually reach the supreme, eternal spiritual abode (sthānaṁ prāpsyasi śāśvatam).