back in the day of black and white tvs....most people who watched tv dreamt in black and white.
sounds like a past life dream or you visited a place and time in the past.
a few days ago i dreamt of a past serial killer who showed me some of what he did. i never heard of him until i did the research after the dream and sure enough there his ugly mug was just as i dreamt it and his story just as he showed me.
i have only had one dream in black and white. i heard someone say the other day that color shows the beauty, but black and white show the soul.