The Yoga of Liberation by Renunciation

This verse gives both assurance and warning: with your mind fixed on Me (maccittaḥ), you will cross all obstacles by My grace (sarvadurgāṇi mat-prasādāt tariṣyasi). But if, from ego, you do not listen, you will perish (atha cet tvam ahaṅkārān na śroṣyasi vinaṅkṣyasi). This is the key teaching: if you keep your mind fixed on Krishna, you will overcome all obstacles by His grace. But if you act from ego and don't listen to His instructions, you will perish. This emphasizes the importance of surrender and listening to the Supreme, versus acting from ego and ignoring His guidance. When you understand this, you realize: you don't need to overcome obstacles through your own efforts and ego. You can keep your mind fixed on the Supreme, listen to His guidance, and overcome obstacles by His grace. This is the path: trust in the Supreme and listening to His guidance leads to overcoming obstacles, while ego and ignoring guidance leads to destruction.