To every one else sin is red red red. Not sin as in that creature but sin as in wrong. But they aren't right because I know sin is so far away from red – sin is yellow. Yellow, Yellow yellow.
Red isn't a bad colour, just misunderstood. It sits there all gruff and "Time is wasting" and "This was your fault for slowing us down Rikku" but that is red's way of being kind in its own way. But yellow is an entirely different story. Its all sunshine-y and sand-y and happy and then when its friend Red starts to go away it just doesn't do anything and that is a sin, Yellow thought that it was good but now Yellow is sin, and sin is yellow. And now there is no more Red to comfort yellow and make her think that she could be good good good if given the chance.