For what is the feng shui?

I think the feng shui is important because help to have more health, better productivity, improve the quality live,the relationships and the others important things.

At home I use feng shui even unconsciouly exámple: in my bedroom I try to keep the harmony, open windows it keep the bedroom  always fresh, i have two nighstands with two lamps.
I Keep all bedroom doors closed at night.
I think everyone organized using feng shui.