Dream of hands

There was a stream of flowing green water that eventually led to a waterfall. I had a lot of money that ended up in the stream of water. I dived in head first to pick up as much money as I can. I tried to reach the money with my hands but I couldn't grasp it. I had to get out of the stream before I got carried into the waterfall. My friend had goggles and she dived in to the stream to pick up the money but she couldn't grab it either. I had to give up. In the end my friend had bits of broken up money pieces in his coffee.