Recurring dream universe?

Date: 3/13/2017

This is more a question, than a dream. I had a dream last night, where I walked over a bridge and met Nazeem Hussain after he came back from Africa. However this is unimportant, I recognised where I was, I knew where to go, I understood the dream universe. I have been having dreams where I appear in the same universe as another dream, the same places where another dream occurred, the same people even. The question is; Is this normal? And if so, does anyone know why, or how?