Is this a sign?

My dreamsign is water. Whether is be a stream, river, lake; I am usually floating down a river or doing something to do with water in my dreams. Two nights ago my friend and I were floating down a large stream with a lot of boulders. The stream then entered into a larger lake, blocked by a large fallen tree.

I remember looking around and my friend's dad clearly said "This is Lake Barbra". After I woke up I found this really interesting because I have never heard of a "Lake Barbra" before. I searched for it on the internet and found there is a 12 acre lake in the Laguna Coast Wilderness Park in California called "Lake Barbra". I live in North Carolina and have never been close to California.

This is really interesting to me. Why did I subconsciously dream about something I have never heard of before that actually exists?