So much for the myth of Osiris. Of the annual rites with which his death and burial were celebrated we unfortunately know very little. The mourning lasted five days,(969) from the 8th to the 12th of the month Athyr.(970) The ceremonies began with the “earth-ploughing,” that is, with the opening of the field labours, when the waters of the Nile are sinking. The other rites included the search for the mangled body of Osiris, the rejoicings at its discovery, and its solemn burial. The burial took place on the 11th of November, and was accompanied by the recitation of lamentations from the liturgical books. These lamentations, of which several copies have been discovered in modern times, were put in the mouth of Isis and Nephthys, sisters of Osiris. “In form and substance,” says Brugsch, “they vividly recall the dirges chanted at the Adonis’ rites over the dead god.”(971) Next day was the joyous festival of Sokari, that being the name under which the hawk-headed Osiris of Memphis was invoked. The solemn processions of priests which on this day wound round the temples with all the pomp of banners, images, and sacred emblems, were amongst the most stately pageants that ancient Egypt could show. The whole festival ended on the 16th of November with a special rite called the erection of the _Tatu_, _Tat_, or _Ded_ pillar.(972) This pillar appears from the monuments to have been a column with cross bars at the top, like the yards of a mast, or more exactly like the superposed capitals of a pillar.(973) On a Theban tomb the king himself, assisted by his relations and a priest, is represented hauling at the ropes by which the pillar is being raised. The pillar was interpreted, at least in later Egyptian theology, as the backbone of Osiris. It might very well be a conventional representation of a tree stripped of its leaves; and if Osiris was a tree-spirit, the bare trunk and branches of a tree might naturally be described as his backbone. The erection of the column would then be, as Erman interprets it, a representation of the resurrection of Osiris, which, as we learn from Plutarch, appears to have been celebrated at his mysteries.(974) Perhaps the ceremony which Plutarch describes as taking place on the third day of the festival (the 19th day of the month Athyr) may also have referred to the resurrection. He says that on that day the priests carried the sacred ark down to the sea. Within the ark was a golden casket, into which drinking-water was poured. A shout then went up that Osiris was found. Then some mould was mixed with water, and out of the paste thus formed a crescent-shaped image was fashioned, which was then dressed in robes and adorned.(975)