O servant of Bahá! Music is regarded as a praiseworthy science at the Threshold of the Almighty, so that thou mayest chant verses at large gatherings and congregations in a most wondrous melody and raise such hymns of praise at the Mashriqu'l-Adhkar to enrapture the Concourse on High. By virtue of this, consider how much the art of music is admired and praised. Try, if thou canst, to use spiritual melodies, songs and tunes, and to bring the earthly music into harmony with the celestial melody. Then thou wilt notice what a great influence music hath and what heavenly joy and life it conferreth. Strike up such a melody and tune as to cause the nightingales of divine mysteries to be filled with joy and ecstasy.
- ‘Abdu’l-Baha (The Compilation of Compilations, vol. III, The Importance of Arts in Promoting the Faith)