Here's how it started: I was standing in the garage. My mom was throwing something in the trash. I remembered that in my dream, I was standing in the garage, holding a 7-11 Slurpee when my grandpa grabbed his chest and fell over.

Now I was awake, standing in the same place as I had in my dream, and I asked my mom if everything was okay with Grandpa. He's fine, she told me, he was having some chest pains and had to go to the hospital the other day, but he's fine.

This is the first dream coincidence I remember. The first of many strange experiences I've had during the third of my life that I spend sleeping. Experiences that have left me wondering, what the heck is happening when we sleep?