Dreams give us symbols of what goes on in our subconscious mind. They reflect how we experience the world around us, how we experience ourselves and other people, and which emotions we have from the day that has gone by just before that night you had that dream. There is a website that helps for me to understand my dreams, I would suggest you look it up on www.dreammoods.com (like with the words 'riot', 'cat', 'grandmother', 'house', 'death', 'backyard',... anything else you remember) Because then only you can figure out why you've had this dream.