Dream: Marbles in the Sand

It was a cloudy but warm day at the beach. I walked barefoot along the shore at the distance from the water where your feet get wet only when the strongest waves hit the sand. After walking for a bit, I spotted a wooden board sticking out from the sand further along the beach. As I neared the board, I saw an unfamiliar girl walking toward the board from the opposite direction. We reached the board at the same time and noticed that it was holding back the water from a small pile of identical green marbles. Silently, we sat down and pushed the marbles into the sand, one by one, until they all disappeared.

And then I woke up. Damn birds and their chirping.