He couldn't take his eyes off that scarlet radiance? Just….how? Why? It was as if he had lost his goddamn mind, fuck, fuck, fuck? Is that what Sin meant by obsession? Indeed, he lost his mind in obsession to the point that even when he was being brutally beaten by Sin, his eyes never strayed away from the Scarlet radiance.
Only after there was a goddamn hole in his chest, did he come back to his senses, he really felt like he had died. It was too painful. By now, he understood the assignment. He would have to cross each uphill section and go closer and closer to that scarlet radiance by bypassing or defeating Sin. And to be able to do that, he naturally could not lose his mind in the process; he cannot look at that radiance ever again, never.