O ye friends of God! True friends are even as skilled physicians, and the Teachings of God are as healing balm, a medicine for the conscience of man. They clear the head, so that a man can breathe them in and delight in their sweet fragrance. They waken those who sleep. They bring awareness to the unheeding, and a portion to the outcast, and to the hopeless, hope.
- ’Abdu’l-Baha (‘Selections from the Writings of ‘Abdu’l-Baha’)