MY MUM OR MY WIFE
Before the one there was one indefinite that co-existed to move my pain and sorrows away. Many persons would disagree and many would also state there opinion in this very delicate matter .
Both concepts are interchangeable . My mum was once upon a time a lady who was inspiring to become somebody's wife and now she is a mother . So when people treat them as separate entity it becomes a big problem. My wife could act as my mum but she can't replace her person so also my mum, she can't also do the same.
It is best to address each position with respect . None is bigger than the other. They are both unique and perfect.