‘At least 95% of the process involved in seeing occur in the mind. The eyes and eye muscles respond to messages from the brain. Mental strain is the cause of blurred vision,’ wrote Thomas R. Quackenbush (extract from his book Relearning to see). Vision, it seems, is happening in our mind. Reality is only a construction then. The real question then, how to un-construct something and construct a new pattern? I wonder as I walk on my toes backward trying to un-construct walking.