śakyo 'vāptum upāyataḥ

asamyata-unbridled; atmana-by the mind; yogah-self-realization; dusprapah-difficult to obtain; iti-thus; me-My; matih-opinion; vasya-controlled; atmana-by the mind; tu-but; yatata-while endeavoring; sakyah-practical; avaptum-to achieve; upayatah-appropriate means.