a young man. Whilst in Baghdad, ʻAbdu'l-Bahá composed a commentary at the request of his father on the Muslim tradition of "I was a Hidden Treasure" for a Súfí leader named ʻAlí Shawkat Páshá. ʻAbdu'l-Bahá was fifteen or sixteen at the time and ʻAlí Shawkat Páshá regarded the more than 11,000-word essay as a remarkable feat for somebody of his age. In 1863, in what became known as the Garden of Ridván, his father Baháʼu'lláh announced to a few that he was the manifestation of God and He whom God shall make manifest whose coming had been foretold by the Báb. On day eight of the twelve days, it is believed ʻAbdu'l-Bahá was the first person Baháʼu'lláh revealed his claim to. Istanbul/Adrianople In 1863, Baháʼu'lláh was summoned to Istanbul, and thus his family, including ʻAbdu'l-Bahá, then eighteen, accompanied him on his 110-day journey. The journey to Constantinople was another wearisome journey, and ʻAbdu'l-Bahá helped feed the exiles. It was here that his position became more prominent amongst the Baháʼís. This was further solidified by Baháʼu'lláh's tablet of the Branch in which he constantly exalts his son's virtues and station. The family were soon exiled to Adrianople and ʻAbdu'l-Bahá went with the family. ʻAbdu'l-Bahá again suffered from frostbite. In Adrianople ʻAbdu'l-Bahá was regarded as the sole comforter of his family – in particular to his mother. At this point ʻAbdu'l-Bahá was known by the Baháʼís as "the Master", and by non-Baháʼís as ʻAbbás Effendi ("Effendi" signifies "Sir"). It was in Adrianople that Baháʼu'lláh referred to his son as "the Mystery of God". The title of "Mystery of God" symbolises, according to Baháʼís, that ʻAbdu'l-Bahá is not a manifestation of God but how a "person of ʻAbdu'l-Bahá the incompatible characteristics of a human nature and superhuman knowledge and perfection have been blended and are completely harmonized". Baháʼu'lláh gave his son many other titles such as G͟husn-i-Aʻzam (meaning "Mightiest Branch" or "Mightier Branch"), the "Branch of Holiness", "the Center of the Covenant" and the apple of his eye. ʻAbdu'l-Bahá ("the Master") was devastated when hearing the news that he and his family were to be exiled separately from Baháʼu'lláh. It was, according to Baháʼís, through his intercession that the idea was reverted and the family were allowed to be exiled together. ʻAkká At the age of 24, ʻAbdu'l-Bahá was clearly chief-steward to his father and an outstanding member of the Baháʼí community. Baháʼu'lláh