I recently had a sort of similar experience, involving an ex-girlfriend that I hadn't seen in a while. One day when I was napping, I had a relatively mundane dream about her. She was getting ready and so forth--putting on make-up, brewing tea etc... but then she picked up her cell phone and dialed. Suddenly, I woke up, and my own phone was ringing. It was her.

We ended meeting for lunch (I didn't even know she was in town at the time), and she was wearing the same necklace I saw her put on in the dream. It was the necklace I gave her, but it had been so long ago that I assumed she didn't even have it anymore.