the sun. the sun is bright and nobody can ever go near it without exploding or burning. just like gojo's technique. which keeps people and things away from him. the sun stands alone, but still manages to shine. still just like gojo. he's alone now. losing his best friend and drifting away from the one he neglected. yet, he still shines. being the strongest sorcerer. he has to keep shining and not explode from himself.