I don't have reoccurring dreams infact the fact that you now understand that killing your friend, burying him over and over is a dream makes me wonder if isn't an elevated trance because basically most times people are always unaware of their dream state is the most prolific feature of a dream however I think yours is strange and reoccurring dreams to me are rare except maybe when when going through some constant psychology thingy even yet they hardly know it's a dream no matter how long, I think I'm talking from experience and well