When working with the controlling element cycle in feng shui, here are some points to remember:
If the dominating element is Wood, introduce the controlling element of Metal and highlight with Earth and Fire.  Do not use much Water.  If the dominating element is Fire, introduce the controlling element of Water, and highlight with Metal and Earth.  Do not use much Wood.  If the dominating element is  Earth, introduce the controlling element of Wood, and highlight with Metal and Water.  Do not use much Fire.  If the dominating element is  Metal, introduce the controlling element of Fire, and highlight with Water and Wood.  Do not use much Earth.  If the dominating element is  Water, introduce the controlling element of Earth, and highlight with Wood and Fire.  Do not use much Metal.  Source:  The Western Guide to Feng Shui by Terah Kathryn Collins.
To visit our web site