This topic fascinates me and since it's happened to me a few times very strongly in dreams, I have to say that yes, I believe. I don't know how it happens, or why, but the scientific community at least recognizes and has done studies. Note that I'm not talking about deja vu or reincarnation... far from it... just ancestor memories... "remembering" things from before we were born that ancestors went through and we couldn't possibly know. I do not, for the record, consider it supernatural either... I don't go for that stuff. That's why I'm posting this in Dreams and not in Supernatural. Going by reasoning alone, I'd probably say I don't believe it... but I've had two dreams... one as a teen and one a few years ago, that pretty much proved it to me without much doubt.