Dream About a Horse

I don't know why i keep having a dream about a horse its just so random. Like all the sudden i have a dream that a horse came into our house. I had the same similar dream before when i was little I had a dream of a horse I know he belonged to my Grandma his name is Rocky and for some odd reason when i was little i had a dream that Rocky came through my closet and it scared the crap outta me i woke up and i guess i started crying and yelling for my dad even though Rocky never actually came through my closet. This is the second time i dreamed about the same horse and it was really similar to the one i had when i was little except he was in the garage and for some odd reason just came through the door and was standing in the hallway now i know he would never hurt me. Its like what the heck do i have a connection with this horse? maybe cause i rode on him all the time when i was younger but for some odd reason out of the past horses my grandma has had this is the only one that keeps appearing in dreams when i dream of a horse. Whatever this dream was about i hope he's doing good and i hope they are taking good care of him and giving him love and riding him everyday.