How was solar energy useful to ancient egyptians?

Ancient Egyptians harnessed solar energy primarily through their architectural designs and agricultural practices. They oriented their buildings to maximize sunlight for natural heating and illumination, while also employing solar drying techniques for food preservation. Additionally, the sun was central to their religious beliefs, symbolizing life and rebirth, which reinforced the cultural significance of solar energy in their daily lives. This deep connection with the sun shaped their civilization's development and sustainability.