Yeah, i've had one particular recurring dream which i had a few times a week until i was about 14. It started as long ago as i can remember, might've even been one of my first few dreams ever. I've been told since (by a person fairly proficient in psychoanalysis, psych study, etc.) that mine was in fact a 'birth dream'. Apparently they're quite common.

I've been told that any experiences in youth are simply more impressing cognitively, due to the experience of them being had in the psychological developmental phase - this is apparently the most fragile. Thus, any subconscious (and therefore dream) impressions attained during your developmental phase are more like to retain their impressions on your subconssious, affecting you later in life. This is why youth dream tend to recur later in life. They're a result of some psychological developmental mark attained in youth. I don't really know any of this, but'm just spouting psycho hearsay. They are definitely significant though, in the sense that they are a direct result of significant experience. They may just not appear so as the conscious often is unable to comprehend the subconscious' importance.

I haven't had a recurring dream since maturing beyond the so-called developmental phase, so i guess that supports the idea. Though adults are known to have recurring dreams.