I have always wanted to produce a book on ancient Egyptian religion but have tended to avoid it due to the fact of the difficulty in understanding it, notwithstanding great scholars in this field like Budge, Maspero to name but a few of whom through their translations have brought these ancient texts to the general public. Even so I have to say the initial gnosis behind the religion appears to be lost through the hundreds of gods that the mythology comprises. Therefore to comprehend this ancient text I have concentrated on the short form of the Book of AM-TUAT which has much fewer gods, even so still describes the Tuat, the underworld that the boat of the Sun God, Ra, traverses during the night hours. To understand and appreciate this movement one notes that it is the Moon that is the reflection of this Sun God. Therefore an interpretation of this underworld should be based on the daily movement of the Moon. The Egyptian god of the Moon was Khonsu she being one of the oldest gods in the Egyptian pantheon she was of paramount importance to agricultural societies in regards to the cultivation of their crops. Now it is in these relationships between Khonsu, Ra and the other gods do we have the means to interpreting AM-TUAT an Egyptian cosmological treatise.