Selected Tablets of ‘Abdu’l-Bahá —Tablets of ‘Abdul-Bahá describing aspects of the life of Bahá’u’lláh including the tribulations He suffered, events in His homeland, the purpose and greatness of His Cause, and the nature and significance of His Covenant. Copyright © Bahá'í International Community. https://www.bahai.org/library/authoritative-texts/abdul-baha/light-of-the-world/