Amun, King of Gods, appeared during the Old Kingdom as a member of the eight cosmic gods of Hermopolis. Amun gained prominence through the political rise of Thebes during the Middle and New Kingdoms and became the Lord of the Karnak Temples.
Aten, like all Heliopolitan deities, was a sun god. By the beginning of the New Kingdom, the cult of the Heliopolitan gods became increasingly influential. It reached its highest degree under the reign of Akhenaten, who neglected all the traditional cults of Egypt to honor only one god.
Hapy was the personification of the Nile flood. His body showed both male and female genders at the same time. Hapy was often depicted on the throne of the king, tying the lotus and the papyrus on the symbol of unification.
From the beginning of the Pharaonic period, the solar cult of Re was dominant in Heliopolis in Lower Egypt or the North. To unite Egypt, the cult of Horus, the representative god of the South, was introduced to the Heliopolitan cult. Hence, Re was united with Horus to give the new form of Hor-em-akhet.