Purpose

Unlock, O people, the gates of the hearts of men with the keys of the remembrance of Him Who is the Remembrance of God and the Source of wisdom amongst you. He hath chosen out of the whole world the hearts of His servants, and made them each a seat for the revelation of His glory. Wherefore, sanctify them from every defilement, that the things for which they were created may be engraven upon them. This indeed is a token of God's bountiful favor.

--Baha'u'llah