"Know thou that whoso seeketh to scale the summits of the divine mysteries must needs strive to the utmost of his power and capacity for his Faith, that the pathway of guidance may be made clear unto him."

"O thou who art standing before My Throne and yet remain unaware thereof!  Know thou that whoso seeketh to scale the summits of the divine mysteries must needs strive to the utmost of his power and capacity for his Faith, that the pathway of guidance may be made clear unto him. And should he encounter One Who layeth claim to a Cause from God, and Who holdeth from His Lord a testimony beyond the power of men to produce, he must needs follow Him in all that He pleaseth to proclaim, command and ordain, even were He to decree the sea to be land, or to pronounce earth to be heaven, or that the former lieth above the latter or below it, or to ordain any change or transformation, for He, verily, is aware of the celestial mysteries, the unseen subtleties, and the ordinances of God."

-Bahá'u'lláh, Gems of Divine Mysteries (Javáhiru’l-Asrár), p. 24