I have a mental condition (although the word condition has kind of a negative connotation)called Synesthesia. So to me, every letter and number appears to be a specific color, sounds also have colors, and I find that I see people's voices as shapes as well as colors. Also, in my mind, days of the week have very specific personalities. I don't really like calling it a condition because I feel like that makes it a bad thing, when it really isn't. It doesn't affect how I function at all, I just see things in odd ways.
It's a funny thing to have because I wasn't even aware it wasn't normal until like 2nd grade when I was talking to my mom about how I remembered how to spell "create" on a spelling test because the colors of the letters reminded me of a sunset, which obviously didn't make much sense to her..
I don't really know where I was going with this little ramble, I just kind of thought it was an interesting subject. So feel free to post thoughts, or experiences