There is a fantastic programme on Radio 4 this week (only available on the BBC iplayer until the 13th July) about creativity where Grayson Perry speaks to artists, writers, neuroscientists about creativity. Rose Tremain is particularly eloquent - well she is a writer :-) - about the subject and Grayson Perry describes his imagination/thought area as his "Inner Shed" which I think is so lovely.
I use to babysit/nanny for a now grown up girl who at about age seven described to me a place she had in her head which was a room made of marzipan lined with books and a marzipan chair where she would retreat to and read stories to herself. Now twenty one, I met her at a party at the weekend, and she is about to start an MA in Renaissance Literature.
I think everyone should nurture their "inner shed"