be reconstructed entirely in stone. It is the only such structure to receive this treatment, thanks to which much of the architectural elements and reliefs have survived to this day. While the reason for this renewal remains unclear, Lehner has proposed that it may be related to Nyuserre's Sed festival, or to some evolution in the ideology surrounding sun temples. The temple was entered from the eastern side following a long causeway which departed from a valley temple located closer to the Nile. This temple mostly served as a gateway to the upper temple and housed a pillared portico of mudbrick encased in yellow limestone. The upper temple comprised a large rectangular courtyard entered via five granite doorways located on its eastern side. An altar was located in the center of the courtyard, which can still be seen today. It was constructed from five large blocks of alabaster, one shaped like the hieroglyph for Ra and the others shaped like the glyph for hotep. They were arranged so as to read Ra Hotep, that is "May Ra be satisfied", from the four cardinal points. The sign for Hotep also means "offering" or "offering table" in Ancient Egyptian, so that the altar was literally an offering table to Ra. At the western end of the rectangular court was a giant obelisk, a symbol of the sun god Ra. It was built on a pedestal with sloping sides and a square top, like a truncated pyramid, which was high and was constructed of limestone and red granite around the base. The obelisk topping it was another high, built entirely of limestone. The temple was adorned with numerous fine reliefs depicting Nyuserre's Sed festival as well as a "chapel of seasons" attached to the obelisk pedestal, decorated with representations of human activities throughout the seasons. Completion and restoration works Pyramid complex of Neferirkare The pyramid of Neferirkare was planned to be significantly larger than that of Neferirkare's Fifth Dynasty predecessors, with a square base side of and a height of . Although well underway at the death of the pharaoh, the pyramid was lacking its external limestone cladding and the accompanying mortuary temple still had to be built. Neferefre had begun covering the pyramid surface with limestone and had built the foundation of a stone temple on the pyramid eastern side; Nyuserre completed their father's pyramid complex, though he did so more parsimoniously