Weird dream about frozen river?

ok so i was in the middle of no where playing in the snow in just the pajamas i was wearing at night. i was sitting in an inflatable tube sled thing. i was with a friend i dont remember who though. we were relaxing after playing in the snow by a frozen river. well part of it was completely frozen on the top, and then there was a bridge, and then it was running water again. well about 40 feet behind my friend was a house and a gas well in the back yard. (i saw the Doentary Gasland a few days baack).... well i was bored so i threww a rock at the frozen part of the river. i didnt expect it to break a tiny hole but it did. then the whole river started to crack and the crack went back all the way to the house( but still in the river) and then it exploded and the ice and snow went everywhere and all over the house. i was really scared for the result because i thought i would fall into the river. it was flowing really fast. well then i forgot what happened in the end...... what does this mean? please explain