The idea behind dream dictionaries is that it is possible to look up the meaning of a dream in one of these books. Dream dictionaries have existed for at least 3000 years, and can still be found in shops today. However, there are no universal meanings to dreams. Dreams are unique to the individual. Even if dreams sometimes use metaphors and symbols that are common in their culture – such as a snake, for example – the meaning of the symbol in one dream will be quite different to the meaning in another dream. To understand our own dreams, and to try to find out what our dream metaphors mean, we need to work with our own dreams using dreamwork.