The significance of Osiris's resurrection in Egyptian mythology encompasses themes of life, death, and renewal. As the god of the afterlife, Osiris symbolizes the inevitable cycle of regeneration, representing hope for life after death. His resurrection from the underworld serves to assure followers that they too can achieve immortality. This myth emphasizes the importance of moral integrity and adherence to the principles of Maat, illustrating that one's actions in life directly influence their afterlife. Osiris embodies the promise of eternal life within the Egyptian belief system.