During those days one hundred years ago Bahá’u’lláh was enduring His imprisonment in the Barracks of 'Akká. Upon the tribulations which weighed Him down was heaped the fatal accident which befell His young son, His companion and amanuensis, Mirza Mihdi, the Purest Branch, whose dying supplication to his Father was to accept his life "as a ransom for those of His loved ones who yearned for, but were unable to attain, His presence." In a Tablet revealed in that grievous hour Bahá’u’lláh sorrows that "This is the day whereon he that was created of the light of Bahá has suffered martyrdom, at a time when he lay imprisoned at the hands of his enemies." Yet He makes clear that the youth passing has a far profounder meaning than His acceptance of the simple request, declaring that "Thou art, verily, the trust of God and His treasure in this land. Erelong will God reveal through thee that which He hath desired." In a prayer revealed for His son He proclaims the purpose underlying the tragedy: "I have, O my Lord, offered up that which Thou hast given Me, that Thy servants may be quickened, and all that dwell on earth be united."+F196 Thus upon a youth of consummate devotion who demonstrated such beauty of spirit and total dedication was conferred a unique station in the Cause of God.