Seclude not yourselves in your churches and cloisters. Come ye out of them by My leave, and busy, then, yourselves with what will profit you and others. Thus commandeth you He Who is the Lord of the Day of Reckoning. Seclude yourselves in the stronghold of My love. This, truly, is the seclusion that befitteth you, could ye but know it. He that secludeth himself in his house is indeed as one dead. It behooveth man to show forth that which will benefit mankind. He that bringeth forth no fruit is fit for the fire. Thus admonisheth you your Lord; He, verily, is the Mighty, the Bountiful.
(Bahá’u’lláh, Epistle to the Son of the Wolf, p. 49)