Egyptian Sun God Heru or Horus
God Heru or Horus, was one of the most known gods of ancient Egypt, although that in Ancient Egypt were numerous gods with similar Heru or Horus names, all are a manifestation of their Sun God Ra.

As it was believed that the pharaoh could be in different places at the same time, is possible that at the entrance of Abu Simbel temple is representing the Gods Osiris- Horus transformation allegories.
For the reason that at the death moment of any Pharaoh, was thought that the will become part or transform during the night into the God Osiris Stellar Body and Osiris. God Osiris, was the ruler of all related to the Thron, the Afterlife, the Night Sky Shere, the Moon Kingdom and World below of the Death.

Therefore, the reason why Ramses II outside of the Temple, is represented by four statues, where he is depicted four times sitting on the throne (still, thus death).
However inside, in the main chamber, there are eight columns statue-like Ramses figures wearing all the identifying Osiris apparels. Although, he is depicted standing; thus, showing attributes of Horus (Moving, meaning alive), likely representing the transformation in process.

Consequently, was assumed that every morning by the power of Goddess Mat That represented the generative force of the daylight sky. Thus, permitted the body and souls of Pharaoh's Ramses II and components of other previous Pharaohs that ever ruled Egypt, to reunite again and transform into the personified standing figure of the Sun God Horus.
For the reason that Horus, besides representing the Day Sky, whose eyes were the Sun and the Moon. As well, was believed to be the embodiment of a wishful force that permitted the cycle of the Day and the renewal of Life. Hence, the divine power that allowed their descendants to continue being the rulers of Egypt.
Egyptian God Heru or Horus