It is natural for the heart and spirit to take pleasure and enjoyment in all things that show forth symmetry, harmony, and perfection. For instance: a beautiful house, a well-designed garden, a symmetrical line, a graceful motion, a well written book, pleasing garments—in fact, all things that have in themselves grace or beauty are pleasing to the heart and spirit—therefore, it is most certain that a true voice causes deep pleasure.
- Abdu'l-Baha (Utterances of 'Abdu'l-Baha to Mrs. Mary L. Lucas, as quoted in “A Brief Account of My Visit to Acca” [Chicago: Bahá’í Publishing Society, 1905]; compilation: ‘The Importance of the Arts in Promoting the Faith’, updated at the Baha’i World Center website)
