Dream of swim, grandfather, died, backyard

I dreamt that I have traveled to my grandparent’s home in India. While I am there I sit around in the warm sun and somehow manage to hold a conversation with the trees planted in their huge garden. As I am talking with these trees my grandfather who died before I was born comes down the pathway and just sits with me. Curious yet frightened I sit there quietly watching as the scene changes from my grandparent’s backyard to the beach. As I sit there the ocean waves casually turn into a high tide and before I know it I am underwater. I look around and start to swim without much effort or the need for breath. I swim around with fishes and don’t notice that my grandfather is no longer with me. I wake up as I surface.