From Japan comes this wonderful question (and lovely handmade postcard):
If you describe feelings by colour, what colour(s) is the moment of happiness to you? the moment of joy to you? and why?
Oooooh, how I like this question! I experience a small degree of synesthesia, which is basically a way of perceiving one sense through another. So, for me, for example, the deep blue sky of the western horizon at twilight "smells" like cinnamon. Every time I see that color, it's as if someone snapped a cinnamon stick in half near me. Mmmmmmmm.
Now, I shall consider what color joy might be.