Bound slave, possibly the way Joseph was bound during imprisonment in Egypt.
Headrest because of its supportive nature, the headrest was associated with the solar cult. It held the head, which like the sun, was lowered in the evening and rose again in the morning. A headrest from the tomb of Tutankhamen illustrates this imagery. On the base are the two lions of the horizon and the god of the air Shu upholds the cup for the head. A painting in the Book of the Dead owned by the scribe Ani portrays the solar barque on a stand. The shape of the stand and the bottom of the boat form the shape of hieroglyphic headrest.