Weird Dream

Isn't is strange how some dreams can seem so real, so vivid, that they stay with you long after you've awaken? Last night, I had a very weird dream (well, obviously, else I wouldn't be writing this post). I dreamed that Scrappy was still alive, and I dreamed that Lou was alive (Lou was Darren's Dalmatian). Looking back, I realize that I've had many dreams over the past years that involved Lou, oddly enough. Anyway, Lou was there, and Scrappy, and our current cat Leo. For some reason, Lou could communicate, and said she had been buried alive years ago, but had survived. I remember being torn as to whether or not to tell Darren because I wanted him to be happy that his dog was still alive, but I didn't want him to be sad if she died suddenly (because she was old when she passed the first time). Anyway, there was some bizarre lizard creature living in the pond that wanted to eat Scrappy and Leo, so I refused to let them out of the house. And then Leo went in for his check-up with the Vet (which is actually supposed to happen today), and Dad came home. I remember looking for Leo and not being able to find him, and then going to ask Dad where Leo was, and Dad breaking into tears because the Vet said Leo had cancer and we had to put him down. The vet had given us some drug called Codeine and instructed us to put it into Leo's food. When Leo ate the drugged food, the next time he went to sleep he would never wake up. And then I was curled up on the porch with Scrappy and Leo and Lou, trying to keep all three close, knowing that I would lose all of them soon, and then I woke up. But I've not been able to shake the feeling of impending doom. Why did I dream about Lou? Why did I dream about Scrappy? Why did I dream about that giant underwater lizard in the pond? Why did I dream that Leo was going to die?