Yá Bahá'u'l-Abhá!

In that cry are all the cries of the universe sounded and the chord of divine reality struck. The shout, Yá Bahá'u'l-Abhá in this day of its birth is more profit unto thee than all knowledge of the sciences and all the wealth of earth....
        It is the rhythm of progress,
        the chord of creation,
        the melody of eternity
        and the password of the Kingdom of God.
Therefore, use it to establish thyself in the realm of divine trust.
        Speak it in thy solitude,
        cry it in thy joy,
        murmur it in thy grief
        and chant it in thy weakest moments and it shall give thee strength.
It is that cry that brings the supreme Concourse to the door of thy life and stations the love of Abhá about thy soul (in trust). It opens the heaven of mysteries, colors and riddles of life. It absorbs all, encircles all, includes all. To say the words of that phrase of "Glory to God" is to sing in harmony to the supreme concourse of songs, and to harmonize with the Holy "I am" in His court of divine omnipotent truth.
        It holds all there is of substance,
        and all there is of form,
        and all there is of spirit,
        and all there is in the world of creative thought.
The Greatest Name carries the highest vibration of utterance, either mental or oral, produces a spiritual result regardless of the thought.

~`Abdu'l-Bahá