Synaesthesia

Ah ha, I knew it, I knew it for a long time! But things never turn to truth before you can find a way to prove it. So here is the "scientific" report for the "feeling when seeing" things.
http://www.nature.com/news/2007/070611/full/070611-14.html

In fact, I would rather say this is somehow the base of human society. Maybe I am aggrandising this physiology process (is it physiology?), but I just think it is. For example, mercy, which sometimes not so good, is related to this, I guess. How about democracy? Who knows...