Blessed are they that occupy themselves in the House of Worship with the remembrance of Him Who is the Lord of the righteous! Blessed are they that arise in the service of this House! Blessed are they that have raised up this House! They enter therein in a state of peace and yearning, and take their leave therefrom with reluctance and regret. We beseech God, immeasurably exalted is He, Our Lord and your Lord, to assist you by means both visible and invisible, and to ordain for you that which shall last as long as His name shall endure, a name that overshadoweth all other names. No God is there but Him, the Ever-Forgiving, the All-Merciful.
— Bahá'u'lláh, From a Tablet translated from the Arabic and Persian