The Báb was the Herald of Bahá'u'lláh the founder of the Bahá'í Faith. The Zanján Upheaval comes from stories of the Dawnbreakers. Opposing the Báb's new Revelation about the idea of the Promised One, it was a ****** battle killing many of His followers in a village called Zanján, Iran.
This particular sonnet focuses on a key individual who sacrificed his life, Hujját whose original name was Mullá Muhammad Alí. He was an ecclesiastical renowned for his knowledge who eventually came to recognise and accept the Báb's teachings upon investigation. The end, prior to his own martyrdom, his child and wife died due to a cannon striking the home which they stayed. This was because the Iranian clergy and Shah opposed his belief in the Báb. His words were:
“The day whereon I found Thy beloved One, O my God,” he cried, “and recognised in Him the Manifestation of Thy eternal Spirit, I foresaw the woes that I should suffer for Thee. Great as have been until now my sorrows, they can never compare with the agonies that I would willingly suffer in Thy name. How can this miserable life of mine, the loss of my wife and of my child, and the sacrifice of the band of my kindred and companions, compare with the blessings which the recognition of Thy Manifestation has bestowed on me! Would that a myriad lives were mine, would that I possessed the riches of the whole earth and its glory, that I might resign them all freely and joyously in Thy path.”