Elder Kai revived Goku by sacrificing his own life to enable Goku's return to Earth and confront the formidable threat posed by Majin Buu. This profound decision was made on the Sacred World of the Kai to ensure Earth had its strongest protector in its direst hour.
The Imperative for Goku's Resurrection
Old Kai's choice to give his life to Goku was born out of an extreme necessity. Majin Buu was an entity of immense and chaotic power, threatening to annihilate all life. Goku, despite being deceased, was recognized as the only warrior capable of standing against Buu.
The critical reasons for Elder Kai's selfless act included:
- Majin Buu's Overwhelming Power: Buu's destructive capabilities and regeneration made him an unprecedented universal threat that no other living fighter could adequately counter.
- Goku's Unique Combat Prowess: Goku possessed the unparalleled strength, advanced Super Saiyan forms, and strategic fighting skills that were essential to challenge Buu effectively.
- Absence of Other Viable Options: With the other Z-Fighters either defeated, absorbed, or not strong enough, Goku was the last beacon of hope for Earth and the universe.
- Immediate Battlefield Presence: Reviving Goku instantly brought a top-tier fighter back into the fray, providing a direct countermeasure against Buu's rampages.
The Mechanism of Revival
Elder Kai's revival of Goku was not merely a magical spell but a literal transfer of his own life force. He consciously decided to give his life to Goku, allowing Goku to regain his physical body and return from the Other World directly to Earth. This ultimate sacrifice by Old Kai paved the way for Goku to resume his vital role in the climactic battle against Majin Buu.
