Shrimad Bhagavad Gita As It Is -Shri Shrimad A.C Bhaktivedanta Swami Prabhupada
Attaining the Supreme
Chapter 8: Verse-26
sukla-krsne gati hy ete jagatah säsvate mate
According to Vedic opinion, there are two ways of passing from this world—one in light and one in darkness. When one passes in light, he does not come back; but when one passes in darkness, he returns.
The same description of departure and return is quoted by Äcärya Baladeva Vidyäbhüsana from the Chändogya Upanisad. 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 Krsna.