Dream of grandpa, hugged

My grandpa passed away a couple of months ago. In my dream, all of my family were at my grandma's (his wife) house and suddenly I saw my grandpa in the kitchen, somehow I knew he was not alive in my dream so I turned to my grandma in tears and told her that I see him, I got up and we hugged, he had a huge smile on his face, one of those smiles that seem like you cannot get rid of, he was incredibly happy and it was visible, he went to the bathroom and I heard voices of coughing, it made sense because he passed away from a lung disease, when he got out of the bathroom my grandma saw my grandpa too, my grandma told my grandpa that he looks great and they both smiled at each other, once again, they both smiled very happy smiles, then my grandma my grandpa and me sat outside together.