The principle of purity was based on the thought that the eternal and pure existence which we have to enter into is entirely free from all contaminations. It is perfectly pure. This highest standard of absolute purity, free from all impurities (mala), distortions (vikshepa) and coverings (avarana) was taken up for the ideal.
Purity weaves our destiny, but… the impurities destroy our destiny.
If the spiritual side is perfect and the wordly imperfect, I would call it crippled perfection. Man must try to become a perfect human being, not God. We have come here not to spoil God’s creation but to retain it in the divine order.