[methodin]

For me I have found if I really think hard about the situations I find myself in dreams they are correlated to thoughts or things I've heard/seen or experienced throughout the day. Suppression of thoughts would manifest itself certainly in a dream but for me specifically it's garbage collection. I've also found that it's fairly easy to recollect what prompted that dream scenario since presumably it's still at the forefront of the my memory circulating around my brain if you will. While this is my own judgement, if accurate for other people, I'm not sure your assertion that "They aren’t scientific or rational at all" would be correct.