te = it; kleshas
prati = back; against
prasava = (icc.) origin; cause; sprout;
heya = (nom. pl. m. from heyaḥ) to avoid; to overcome
sūkṣmāḥ = (nom. pl. m./acc. pl. f./nom. pl. f. from sūkṣma) subtle; fine

As Patañjali says, we can never completely rid ourselves of kleśa, which can potentially rear its ugly head along our spiritual path at any time. Thus our spiritual work in this regard is never ending. Fortunately, however, Patañjali gives us some advice as to how we can overcome kleśa.