If you are one of that small band of people who happen to see days of the week, months of the year, even single numbers and letters in colour, you are considered either very peculiar or very lucky. It also means you are a synaesthete. I am one of them.Synaesthesia is a rare condition: few people have heard of it. To put it simply, synaesthesia is a psychological and neurological state concerning the visual and auditory areas of the brain. For those who have never known a yellow Friday, or a red July, it’s hard to understand how this curious phenomenon works. Most people have five senses: sight, touch, hearing, taste, smell. For synaesthetes, there is an overlapping of two or more senses. Aisthesis comes from the Greek word meaning sensation, while syn means together, or union.