Why do pyramids have air vents?

Pyramids, particularly the Great Pyramid of Giza, have air vents that are believed to serve multiple purposes. Primarily, they may have been designed for ventilation, allowing air to circulate and reduce humidity within the burial chambers. Additionally, some theories suggest that these vents could have had astronomical significance, aligning with certain stars or celestial events, thereby reflecting the ancient Egyptians' beliefs in the afterlife and the cosmos.