Sahu is a posture imitating the pose of the mummy and is for the purpose of contemplation. Ancient Egyptians would lie in Sahu in the open sarcophagus in the Kings chamber of the great pyramid. It is said that an out of body experience is achieved and one faces the dark shadow of themselves projected to them on the astral plane. If one is successful by forgiving and accepting that part of themselves then they would achieve the highest level of awareness. This pose is commonly known as Savanasana in Hatha yoga. Wadjet is a yogic flow representing the serpent and is also a yoga flow commonly known as Cobra in Hatha yoga.