Verse 20

हितं महासत्त्वतयात्मतत्त्वंविधाय बुद्ध्या भव वीतशोकः ।तव क्रमेणैव ततो जनोऽयंमुक्तो भविष्यत्यथ वीतशोकः

In plain words

Establishing, through buddhi and through greatness of being, the beneficial truth of the ātman, become free of sorrow. Then, by your very course, these people shall be freed, and thereafter free of sorrow.