Plutarch and others have noted that the sacrifices to Osiris were "gloomy, solemn, and mournful..." (Isis and Osiris, 69) and that the great mystery festival, celebrated in two phases, began at Abydos commemorating the death of the god, on the same day that grain was planted in the ground (Isis and Osiris, 13). The annual festival involved the construction of "Osiris Beds" formed in shape of Osiris, filled with soil and sown with seed. The germinating seed symbolized Osiris rising from the dead. An almost pristine example was found in the tomb of Tutankhamun.