Do dreams really have meanings?

Diana
I'm currently in a serious relationship but I have no kids nor am I planning on a family any time soon. I had a dream I was holding a baby boy,(which was my son) very cute with a beautiful smile and huge blue eyes. What caught my attention is that I actually remember exactly what he looked like, unlike other times. Every time I dream of people I don't know, I usually cannot see their faces, but this baby's face I cannot get out of my head. Is there a meaning to this?