I've been having dreams of two dogs what do they mean? (details inside on them).

Okay so lately I’ve been thinking of these two dogs named Kona and Kai. They were old dogs that my family had before I was born. I’ve met them before, just I was too little to remember. But Kai…At the moment I don’t remember how he died…But Kona died from eating bad meat that was thrown in the back of our backyard by the neighbors, and we didn’t know till we found her lying on the ground with her mouth foaming…That’s how my mom told me how she died…But I’ve been having dreams of them…I’m not sure if what they look like in my dream is what they looked like in reality…But Why have I been dreaming of them? It’s a question I can’t answer.