The acid test to decide whether an activity is unholy or sinful is to examine whether it arises from or promotes greed. This is the teaching, the lesson from Vidya. Intent on fulfilling your legitimate duties, you can pray to God to keep you alive for a hundred years. You will not incur blame. So, Vidya advises you to engage in activities with full understanding of their nature and consequence.
Beasts kill only other beasts.
But the blind man who has not acquired the Vision of the Atma that he is, kills himself. And Vidya warns that he who commits this crime goes into fearful realms sunk in the thickest night. Vidya, the Supreme Wisdom, attempts to describe for man the 'characteristics' of Atma. Even the gods cannot keep pace with it, however quick they are. It reveals Its Presence long before we anticipate It.