feng shui. Does it really work?

Reading about feng shui in the book, something cached my attention and it is that the feng shui does not allow mirrors in the bedroom so it means that the 80% of dominican houses have been using mirrors the wrong way. 

It is very interesting the way feng shui stablishes that the way you put things in your house will influence your life in a good or a bad way. I think is very interting to know a litlle bit more about this topic because maybe it works and could develop it in our own houses.