You would think Itadori Yuuji is the vessel of Sukuna while yeah that's true, but he's also the vessel of every wishes, hopes, dreams, and memories of everyone that he ever loved

From the moment his grandpa gave him his final last word, to the memory of junpei, to nanami's "you got it from here", the memories of nobara and choso, gojo's "I'm counting on you, yuuji", yuki's dream to eradicate curses, and so on...