शुक्लकृष्णे गती ह्येते जगतः शाश्वते मते । एकया यात्यनावृत्तिमन्ययावर्तते पुनः ॥२६॥
śukla-kṛṣṇe gatī hy ete jagataḥ śāśvate mate ekayā yāty anāvṛttim anyayāvartate punaḥ
śukla — light; kṛṣṇe — and darkness; gatī — ways of passing; hi — certainly; ete — these two; jagataḥ — of the material world; śāśvate — of the Vedas; mate — in the opinion; ekayā — by one; yāti — goes; anāvṛttim — to no return; anyayā — by the other; āvartate — comes back; punaḥ — again.
These two, bright and dark paths, always exist in this world. The way of light leads to liberation and the way of darkness leads to rebirth.
The same description of departure and return is quoted by Ācārya Baladeva Vidyābhūṣaṇa from the Chāndogya Upaniṣad (5.10.3–5). Those who are fruitive laborers and philosophical speculators from time immemorial are constantly going and coming. Actually they do not attain ultimate salvation, for they do not surrender to Kṛṣṇa.