Verse 21

वैराग्याभ्यासवशतस्तथा तत्त्वावबोधनात् ।संसारस्तीर्यते तेन तेष्वेवाभ्यासमाहर

In plain words

By the strength of the practice of vairāgya, and likewise by the awakening to tattva, saṃsāra is crossed over; apply yourself in practice to those very two.