Many corpses in a house... come back to life?

[Fuzzie]

So I just woke up from having an interesting dream..
I'm not exactly sure where it started, but I was in this huge house that also seemed like a hotel - many people/families were staying there. It had huge windows and a big backyard. Outside there were people working on some sort of construction on a building, and I could see them walking back and forth. One of them was my math teacher.
Anyways, inside the house, I think I was with like 1 other person, but I'm not completely sure who it was. We were walking around trying to find people, but all we could find were corpses. Everyone was dead. Some were just laying around, and some were sitting up stiff, as if they had died doing something regular, like taking a bath or sitting at a table. There was one that was jammed in a fireplace, and like 3 in the same room that had hung themselves. In the dream I had the idea in my head that someone had killed them all - even the ones who had been hung. The one in the fireplace had blood on his shirt, and there was also one in another room that had no head.
Eventually I started getting scared of the corpses, and I didn't wanna see anymore so I stood at the bottom of the stairs in the hallway of the house. I could hear slight screaming from upstairs, and in my dream I felt like one of the corpses was telling me to come up there but I refused.
Then my math teacher comes in from outside and claims she hears the same thing, so she runs up the stairs to find the dead body of an infant girl in a black dress with long black hair and pale skin, sitting at the top of the stairs. Suddenly, the girl's sister's corpse falls down from the balcony and lands a few feet from me (i knew it was her sister because it looked like her, but older). I could hear her body thump as it landed, and heard her skull crack against the floor. I walked into the living room, not wanting to look at her, and find corpses I had previously seen. I look back at the girl who had just fell, and swear she had moved.
She did - she starts getting up, and says "I'm alive!" and she goes back up the stairs, and shakes her sister, telling her to "Wake up, you're alive."
She does the same thing for her entire family, whom was staying at the house - her mom, dad, and little brother. I start following her lead, and I begin to go around telling all the corpses that they're alive, and that they can get up now.
After everyone's alive again, we had a sort of reunion in the kitchen, as if they all had been away for a long time or had suffered a great tragedy. Even the headless guy was walking around shaking hands.

...anything significant here?