What is free writing?

For those who don't know, free writing, is where you write for around 1/2 an hour, about anything that comes into your head.
Directed free writing, is when you start from a specific word or phrase, and then write all that comes into your mind about that particular word or phrase. Sometimes ideas for further work are produced, or the piece may stand alone.
If you want to leave a word or phrase to be written about, please do so.