Lust is only the perverted reflection of the love of God which is natural for every living entity. But if one is educated in Krsna consciousness from the very beginning, that natural love of God cannot deteriorate into lust. When love of God deteriorates into lust, it is very difficult to return to the normal condition. Nonetheless, Krsna consciousness is so powerful that even a late beginner can become a lover of God by following the regulative principles of devotional service. So, from any stage of life, or from the time of understanding its urgency, one can begin regulating the senses in Krsna consciousness, devotional service of the Lord, and turn the lust into love of Godhead — the highest perfectional stage of human life.

From Srila Prabhupada’s purport to BG 3.41