Transcendent character of the Baha'u'llah's Revelation

And last but not least is Abdu'l-Baha's own tribute to the transcendent character of the Revelation identified with His Father: "Centuries, nay ages, must pass away, ere the Day-Star of Truth shineth again in its mid-summer splendor, or appeareth once more in the radiance of its vernal glory."
 "The mere contemplation of the Dispensation inaugurated by the Blessed Beauty," He furthermore affirms, "would have sufficed to overwhelm the saints of bygone ages -- saints who longed to partake for one moment of its great glory." "Concerning the Manifestations that will come down in the future 'in the shadows of the clouds,' know verily," is His significant statement, "that in so far as their relation to the source of their inspiration is concerned they are under the shadow of the Ancient Beauty. In their relation, however, to the age in which they appear, each and every one of them 'doeth whatsoever He willeth.'
" And finally stands this, His illuminating explanation, setting forth conclusively the true relationship between the Revelation of Baha'u'llah and that of the Bab: "The Revelation of the Bab may be likened to the sun, its station corresponding to the first sign of the Zodiac -- the sign Aries -- which the sun enters at the vernal equinox. The station of Baha'u'llah's Revelation, on the other hand, is represented by the sign Leo, the sun's mid-summer and highest station. By this is meant that this holy Dispensation is illumined with the light of the Sun of Truth shining from its most exalted station, and in the plenitude of its resplendency, its heat and glory."

Shoghi Effendi