Yin means protected, intimate, private, Yang, open, public. And the windows are like doors, which allow the connection between the yin and yang, the difference is that the windows allow us to observe the outside without having to leave him, that is, viewed from a protected location while the doors are only a step.
According to Feng Shui, the window must allow to sit at his side, stopping before it, meditate, contemplate. If we can not do these things, would become just a hole in a wall. The window is the way we communicate with the outside, light, air, and the community in which we live. If a non tell with any windows, and insulate us would be very similar to a basement.
Nicest rooms are those with at least two windows (facing different sides), as this forms the light quality is great.
The windows are the eyes of the house, and for observing the outside world yet, show him the outside inside the home and family. The windows are not made to spy or look at trying not to be seen, but are for looking and look at us.
We all know that those houses have no windows on the forehead or that they are always closed, take on a mournful air, threatening. Also, windows that do not have curtains are like lidless eyes, if it is very obvious, it will lose its charm, a window has yet to show, hide.
Given that the windows, as stated, are not doors, Feng Shui tells us that they should never reach the floor, and in that way could become a transit and lose their function. Windows should be at least 50 cm of soil, if you are on the ground floor, and even higher if we talk about upper floors.
A window does not open, can not call window. The same goes for those sliding windows, because the Chinese associate that movement with a guillotine, and therefore disagree with its use.
In terms of size, large windows leak vital energy. The best windows are those that can open wide, and even better if they divided glass, as we can see out, yet remind us that we are safe inside our home. A whole glass can cause us to feel invaded by the outside.
The window should provide rest, making us feel that we are calm, peace. We can see in the distance, relax our view, a situation that does not happen everyday, being the most time doing activities that require short sight reading, working with computers, writing, etc. According to Feng Shui, the further allow us to see the windows, the better.
If for some reason the opening prevents us from seeing too far, we can use some attractive object and colors, and place it close to her, like a plant, flowers, etc..
We can say that for a window provides the right harmony between Yin and Yang, it should motivate us, give us peace, and teach us to see far.