In my opinion coming home is to return to a place that makes you comfortable and makes you feel safe. I mean personally there are many place that I could go and refer to as "going home".
For example the place in which I reside for example I can go home to there. However I grew up in Hamilton. On occasion when we go to Hamilton it is referred to as "going home" because that is one place in which I am comfortable. There are also places I spend a lot of time like at my grandparents, or my cousins and I can just relax comfortably.
Just to come home is to return to a place that makes you feel at peace. a place you can let everything out after a long day.