39-2

तावद्भवदशादोला विलोलान्दोलनस्थितिः ।अभ्यासेन विना पुत्र न कदाचन दुःखदा

In plain words

So long does the swing of the states of becoming remain in its restless oscillation; and without abhyāsa, son, never does the sorrow-giving —