Synesthesia

"She said that everything had colour in her thought; the months of the year ran through all the tints of the spectrum, the days of the week were arrayed as Solomon in his glory, morning was golden, noon orange, evening crystal blue, and night violet. Every idea came to her mind robed in its own especial hue. Perhaps that was why her voice and words had such a charm, conveying to the listeners' perception such fine shadings of meaning and tint and music."