Mbh 12.19.1b

All men that are righteous are seen to be devoted to ascetic penances and the study of the Vedas. The Rishis also, that have many eternal regions for them, have the merit of penances. Others possessed of tranquillity of soul, having no enemies, and dwelling in the woods, have, through penances and study of the Vedas, proceeded to heaven. Pious men, by restraining desire for worldly possessions, and casting off that darkness which is born of folly, proceed northward (i.e., by luminous paths) to the regions reserved for practisers of renunciation. The path that lies to the south and that leads to regions of light (i.e., lunar regions), are reserved for men devoted to action. These are attained by persons subject to birth and death. That end, however, which persons desirous of salvation have before their eyes, is indescribable. Yoga is the best means for attaining to it. It is not easy to explain it (to thee). Those that are learned live, reflecting on the scriptures from desire of finding what is unreal. They are, however, often led away to this and to that in the belief that the object of their search exists in this and that. Having mastered, however, the Vedas, the Aranyakas, and the other scriptures, they miss the real, like men failing to find solid timber in an uprooted banana plant. Some there are who, disbelieving in its unity, regard the Soul, that dwells in this physical frame consisting of the five elements, to be possessed of the attributes of desire and aversion (and others).[62] Incapable of being seen by the eye, exceedingly subtle, and inexpressible by words, it revolves in a round (of re-births) among the creatures of the earth, keeping before it that which is the root of action.[63] Having made the Soul advance towards itself which is the spring of every kind of blessedness, having restrained all desires of the mind, and having cast off all kinds of action, one may become perfectly independent and happy.