All pure things are acceptable. For example: water— pure—-is
acceptable; fresh air is most acceptable. As all pure things are acceptable and
pleasing, therefore a pure voice is most acceptable, and causes great
enjoyment.
There are two kinds of voices. One when the complete
instrument is perfect, then the emission of sound is perfect. The second is
when the instrument is imperfect, it affects the voice in such a way that it is
far from pleasing. What we have just said refers to the voice itself.
- 'Abdu'l-Baha (Words of
‘Abdu’l-Baha, recorded by Mary Lucas during her pilgrimage in 1905; ‘A Brief
Account of My Visit to Acca’, by Mary Lucas)