"Immeasurably exalted is this sign, in its essence and reality, above all such names and attributes. Nay, all else besides it will, when compared with its glory, fade into utter nothingness and become a thing forgotten."

"It would be wholly untrue to maintain that this [rational] faculty is the same as the power of vision, inasmuch as the power of vision is derived from it and acteth in dependence upon it. It would, likewise, be idle to contend that this faculty can be identified with the sense of hearing, as the sense of hearing receiveth from the rational faculty the requisite energy for performing its functions. 

This same relationship bindeth this faculty with whatsoever hath been the recipient of these names and attributes within the human temple. These diverse names and revealed attributes have been generated through the agency of this sign of God. Immeasurably exalted is this sign, in its essence and reality, above all such names and attributes. Nay, all else besides it will, when compared with its glory, fade into utter nothingness and become a thing forgotten." 

~Bahá’u’lláh

(Gleanings from the Writings of Bahá’u’lláh)