The Jedi were supposed to serve as a champion of the light and yet they had failed to recognize the influence of the dark side at the heart of the Republic. The lightsaber is a tool to help a Jedi focus in the Force, with the Jedi becoming aware of the kyber crystal at the saber's heart.
There is a striking similarity between Obi-Wan's two lightsabers and the two lightsabers Rey buried at the end of Star Wars: The Rise of Skywalker. In the Obi-Wan Kenobi Disney+ TV series, Obi-Wan's decision to bury the lightsabers is a perfect example of Rey's decision to bury the lightsabers. Tie-ins have described a Jedi's lightsaber as a lens that focuses the light inside the Jedi, meaning the lightsaber he had used for decades had become a part of him. According to the Star Wars Rebels episode "Twin Suns," Obi-Wan thought that he was the Chosen One instead of Anakin.
Obi-Wan took the lightsaber in order to honor his former Padawan's legacy by giving it to his son. Rey buried both of Obi-Wan's lightsabers and built a new one for her own use. Obi-Wan knew the general area he had hidden them in, and he must have seen the kyber crystals within them. The Jedi Master buried his lightsaber in the desert sands when he exiled himself on Tatooine. The lightsaber was a symbol of Obi-Wan's hope that he would not fail. Obi-Wan was no longer a Jedi for the next two decades. He had his own lightsaber, which Obi-Wan had taken from his apprentices after defeating him. Before taking the chance to train the boy, he had to keep his head down and wait for him to grow up.
In Star Wars: Episode II - Attack of the Clones, Obi-Wan told Anakin that his weapon was his life. She had nothing to fear when the light of the Jedi came back and she lived in a different time. This second lightsaber would have represented a lot to Obi-Wan, as it represented all of his regrets, as well as his hopes thatluke could be what he was not. Obi-Wan thought his time as a Jedi Master was about to end when he arrived on Tatooine. Obi-Wan episode 1 clearly showed no identifiable landmarks, even though he buried them in the shifting sands of Tatooine.
Obi-Wan was able to find the lightsabers easily.
The Jedi Master buried two lightsabers in Tatooine's desert sands. They were wiped out in Star Wars' Order 66 because of the betrayal of the clone troopers. Someone with no connection to the kyber crystals could one day find them if she chose a location with a landmark. She decided to bury the lightsabers in order to give them another legacy.
Obi-Wan buried two lightsabers.