Suppose you had a dream where you were on a flight from LA to Sydney with the Pope. The Pope told you a story about how, as a boy, he rode reindeer in Siberia.

Try to think of 2 or 3 keywords that might help you remember that dream. Probably something like "plane", "pope", "reindeer", etc. So maybe you can't remember a whole dream, but I'm sure you can remember 3 words.

And I wouldn't bother with any audio tracks. That stuff is entirely placebo.