Verily, I say, so fierce is the blaze of the Bush of love,
burning in the Sinai of the heart, that the streaming waters of holy utterance
can never quench its flame. Oceans can never allay this Leviathan’s burning
thirst, and this Phoenix of the undying fire can abide nowhere save in the glow
of the countenance of the Well-Beloved. Therefore, O brother! kindle with the
oil of wisdom the lamp of the spirit within the innermost chamber of thy heart,
and guard it with the globe of understanding, that the breath of the infidel
may extinguish not its flame nor dim its brightness.
(Baha'u'llah, The
Kitab-i-Iqan)