In 4 BBY, when Lando Calrissian, Vuffi Raa, and Mohs entered the pyramid, Calrissian was reduced in size when he approached the Mindharp. Mohs the High Singer, was blinded by the pyramid's power, allowing him to "see" beyond mortal knowledge. When Lando and Vuffi Raa returned with the Mindharp, they were surprised to learn that they had spent nearly four months inside the Great Pyramid, a stretch of time that seemed to them to last just a few hours.