The Egyptian Book of the Dead
The Chapter of unfastening the opening in the sky. Thoth does it so that it may be finished when he opens (the sky) with Aten.
161.1Rā is living, the tortoise is dead. The body has been offered in the earth; the bones have been offered of N. [The West wind of Isis].
161.2Rā is living, the tortoise is dead. It is safe that is in the funeral chest of N. [The East wind of Nephthys.]
161.3Rā is living, the tortoise is dead, the limbs are well wrapped up. Kebehsenef is to keep watch over them for N. [The North wind of Osiris.]
161.4Rā is living, the tortoise is dead. His wrappings have been opened; they reveal his figure. [The South wind of Rā.]
161.5Everybody who has these figures on his coffin, the four openings of the sky are open to him; one in the North, it is the wind of Osiris; one in the South, it is the wind of Aah (the moon); one in the West, it is the wind of Isis; one in the East, it is the wind of Nephthys. Every one of these winds, which are at his entrance when he wants it, breathes into his nostrils.
161.6Let no one outside know it, it is a mystery which is not known to the common people. Do not reveal it to any one, may he be thy father or thy son, except thyself. It is a real mystery, and every one of these things is unknown to all men.