The Tale of Naruto and his Adventures leading him back to Sasuke. A circle of life. Naruto gave color to Sasuke's life (as well as the tree) the same well Sasuke had done in the beginning, which is why Naruto was in pursuit of him all along.
When I first heard it, I could tell Kishimoto chose it because it sounds like both Sasuke and Sakura's names. Plus 'Sarada Uchiha' together means cooking oil meaning she'll Regan the flames of the Uchiha clan.
Fan Artist Reimagines Happy Ending For Tragic Naruto Characters (By Black Marlboro)