And it seems to me a very spiritual experience, drastically different from any lucid dream. Does anybody have any clue why this seems to be genetic?
Actually i do, please correct me if i'm wrong!

I guess you have been told many times, maybe already as a child, that many in your family had those experiences ?
Maybe then you started to believe its genetic and started to have those OBE's all the time.

I could be wrong but i think its all a matter of what you believe is genetic and what not.