Dreamt of My Late Grandfather

It just came out of nowhere. The dream started with me standing in front of my grandparents’ old house, and there he was. We went inside, and right away I knew he had passed, so I started asking him things. I don’t recall how the chat began, but I asked him what Allah’s judgment was like. He told me it’s no simple thing at all-it’s very hard. So that hit me as a clear warning. He also said that when we die, the ground beneath us becomes like grass; but if you’ve been bad, that grass turns into something sharp like metal, which you feel when the living carry you to the grave (that was the gist of it, not his exact words). I mentioned I’m married now, and he just gave that knowing smile, like he already knew everything. The dream shook me deeply. For two reasons-how aware I was during it, and how I had zero doubt that my grandpa was gone and was actually visiting me. The way I was so curious in the dream, and somehow got answers. And honestly, I hadn’t even thought about him at all these past few months. So I don’t know how to read this dream-is it really a visitation, or just my subconscious, or maybe a pleasant dream from Allah subhanahu wa ta’ala?