what does my dream mean floor

One of my dreams was ;
i was in a really big Farm-like house , it was about 8floors up. but there was bridges everywhere. at the very bottom there was a big pond. with clear water, i saw my reflection. it didn't look deep at all , but when i saw a penny i wanted to get , i reached down to get it but then i fell right in the water and suddenly it was very deep inside, from that i woke up and had no idea of what else might had happen