“O YE sons and daughters of the Kingdom! Thankful, the birds of the spirit seek only to fly in the high heavens and to sing out their songs with wondrous art. But the pitiable earthworms love only to tunnel into the ground, and what a mighty struggle they make to get themselves down into its depths! Even so are the sons of earth.”

– ‘Abdu’l‑Bahá, Selections from the Writings of ‘Abdu’l‑Bahá