1. Polluted desires lead to rebirth

    The minds of those who are addicted to fruitive activity are always filled with unclean desires. Fruitive activities are symptomatic of our polluted desire to dominate material nature. As long as one continues to be subject to polluted desires, he has to accept one material body after another.

    From Srila Prabhupada’s purport to Srimad-Bhagavatam 4.23.8