18.58 You will cross every difficulty Krishna speaks

मच्चित्तः सर्वदुर्गाणि मत्प्रसादात्तरिष्यसि
अथ चेत्त्वमहङ्कारान्न श्रोष्यसि विनङ्क्ष्यसि

mach-chittaḥ sarva-durgāṇi mat-prasādāt tariṣhyasi
atha chet tvam ahankārān na śhroṣhyasi vinaṅkṣhyasi

With your mind on me you will cross every difficulty by my grace. But if out of the sense of self you will not listen, you will be lost.

Explanation

You will cross every difficulty.

And then the other half, which is rarely quoted: if out of the sense of self you will not listen, you will be lost.

The condition named is not disbelief but ahaṅkāra — the sense of being the one who decides. Which is the exact thing 18.16 called not seeing rightly.

Word by word

mat-chittaḥ: by always remembering me
sarva: all
durgāṇi: obstacles
mat-prasādāt: by my grace
tariṣhyasi: you shall overcome
atha: but
chet: if
tvam: you
ahankārāt: due to pride
na śhroṣhyasi: do not listen
vinaṅkṣhyasi: you will perish