The Egyptian Book of the dead by P. Le Page Renouf and Edouard Naville

3. _Every gate._ “Rā at his rising is adored by the Powers of the East.

They it is who effect the rising of Rā, by opening the door at each of the four portals of the Eastern horizon of heaven.” (Inscr. in tomb of Rameses VI, Champollion, _Notices_, Tom. II, p. 640.)