“Fiction is like a spider's web, attached ever so lightly perhaps, but still attached to life at all four corners.”
― Virginia Woolf, A Room of One's Own
I love this quote by Virginia Woolf. Fiction is indeed like a spiders web and the anchoring to reality has degrees of attachment. Woolf has a range of attachment in her fictional works. The most loosely connected would have to be Orlando where the main character changes sex in the course of the story. It is in fact impossible to write fiction that is totally unattached to life, as we would have no way of appreciating it. The analogy to me is like a sail that has a great degree of movement but always has strong attachment points to stop it blowing away.