“Good literature substitutes for experience which we have not ourselves lived
through.” – Alexander Solzhenitsyn
I think the speaker means, to write good literature you dont need to have lived it. If you have a good imagination, you can write about whatever you want, and write it well. You don't need to expierience it if you know what you are talking about.

The quote relates to my book because Mark Twain never road down a big river with a slave in his raft with them. Twain just wrote about it, and gave some facts. He didn't expierience this yet it's one of the best books ever written.. Now thats good literature!