Dream about a missing Dog... what that mean?

I had a dog for almost 6 or 7 years... she was sold to my family and she apparently had already 4 or 5 years... i really loved that dog... then 3 years ago i moved to other country and my family moved to other house where they could not have dogs so she stayed with our driver... i would ask for her when i called my parents and they said they were always checking on her... one day 4 months ago .. they told me she ran away from the drivers house. I was really sad bcause lost dogs in my country are never found... and also she had already ran away from the drivers house about 2 times... seemed she wanted to go back to our house... i havent thought about her for a long time till last night,.. i had a dream about her for the first time and in the dream i was, it did not had nothin to do about dogs or smthin... i feel that she even interrupted or "crushed" my dream... she just appeared from nowhere and i started asking my sister if she wasnt lost. After that... i hugged her and i cried a lot.. i cried a lot.. then i went with her to the car and then i hugged her again and we cried.. i could see in her eyes she was crying .. but a happy cry. then during the cry, she was next to my ear, then she start trying to talk... she only said I WANT , twice... then i went in some place and straight after that i woke up... i woke up very sentimental and crying a lil bit and thinking about what meant this strange dream coming from nothing, i never had a dream about dogs or about her.. and i feel right now that she died and came to say good bye but she was saying that she wanted something... what it could be?? im a male... 22 yrs old.. houston Tweet