श्रुतिविप्रतिपन्ना ते यदा स्थास्यति निश्चला। समाधावचला बुद्धिस्तदा योगमवाप्स्यसि ॥

śhruti-vipratipannā te yadā sthāsyati niśhchalā samādhāv-achalā buddhis tadā yogam avāpsyasi

When thy mind, bewildered by the Scriptures, shall stand immovable, fixed in contemplation, then shalt thou attain unto yoga.

In plain words: Krishna says Arjuna's mind is now confused by many scriptures. When it becomes still and steady in meditation, he will reach yoga.