Purity

"Cleanliness and sanctity in all conditions are characteristics of pure beings and necessities of free souls. The first perfection consists in cleanliness and sanctity and in purity from every defect. When man in all conditions is pure and immaculate, he will become the center of the reflection of the manifest Light. In all his actions and conduct there must first be purity, then beauty and independence. The channel must be cleansed before it is filled with sweet water. The pure eye comprehendeth the sight and the meeting of God; the pure nostril inhaleth the perfumes of the rose-garden of bounty; the pure heart becometh the mirror of the beauty of truth. This is why, in the heavenly Books, the divine counsels and commands have been compared to water. So, in the Qur’án it is said, “and we have caused a pure water to descend from heaven;” and in the Gospel, “Except a man hath received the baptism of water and of the spirit, he cannot enter into the Kingdom of God.” Then it is evident that the divine teachings are the heavenly grace and the showers of the mercy of God, which purify the hearts of men.

The meaning is, in all conditions, cleanliness and sanctity, purity and delicacy exalt humanity and make the contingent beings progress."

-- Abdu'l Baha