I earnestly hope that thou wilt memorize all the Persian poems revealed by the Blessed Beauty and wilt sing them in a voice of incomparable sweetness at Bahá'í meetings and gatherings. The day is not far distant when these poems will be set to Western music and the sweet accents of these songs will reach the Abha Kingdom with exceeding joy and gladness.
- ‘Abdu’l-Baha (From a Tablet; The Compilation of Compilations, vol. III, The Importance of Arts in Promoting the Faith)
Whether in the Kitáb-i-Aqdas, the most weighty and sacred of all the works of Bahá'u'lláh, or in the Kitáb-i-'Ahd, the Book of His Covenant, or in the Suriy-i-Ghusn (Tablet of the Branch), such references as have been recorded by the pen of Bahá'u'lláh -- references which the Tablets of His Father addressed to Him mightily reinforce -- invest 'Abdu'l-Bahá with a power, and surround Him with a halo, which the present generation can never adequately appreciate.
- Shoghi Effendi ('The World Order of Baha'u'llah')