This is clearly a verryyy not finished page, honestly I don't expect many to come here anyway so you're like a little tester! Cheeky bastard. GET OUTTT
When I think of Yuuji and Mahito, I can't help but compare them to Ouroboros. In case you don't know what that is, it's defined as "1. A circular symbol that depicts a snake or dragon devouring its own tail and that is used especially to represent the eternal cycle of destruction and rebirth. 2. usually ouroboros or less commonly uroboros : something (such as a never-ending cycle) that is likened to or suggestive of the Ouroboros symbol." by the Merriam-Webster dictionary. Yuuji and Mahito are in perpetual motion, never ending and heavily reflective of each other.
I also compare them to Yin and Yang a lot. I've especially latched onto the fact that Mahito has givin Yuuji a scar, its oh so reminicesnt of how Mahito will live on in Yuuji forever more. He's givin him a lifelong scar. Not just physically but psychologically. Mahito has changed how Yuuji thinks, his motives and his morals, he's changed his mental state and messed with how he percieves curses and sorcerers alike.
In my mind when Yuuji died and was in Sukuna's innate domain, time was distorted. You could be in his domain for what feels like hours but when you come out, it's only been seconds. Or months. Or years. It's constantly shifting time so when Yuuji was there, to him it was an entire week, but to everyone else outside of Yuuji's body it was only around a day.