My own definition of Feng Shui has changed many times since I studied Feng Shui Astrology in 1977 to Landscape Feng Shui in 1990 and finally to Authentic Chinese Compass Feng Shui in the past 14 years. My current definition of Feng Shui is "being in the right place at the right time".
The reason I have come up with this recent definition is that it is clear that we live in a changing world and the "time" element of Feng Shui reveals that areas of our landscape, our home, our office and even a small sector of our kitchen could be very active - either positively or negatively in one year and less so in another.
Being able to read the landscape and assess the interior of a building using many different formulae is a skill in itself. The purpose of Feng Shui is to assess and survey accurately the strengths and weaknesses of any property and then make recommendations that are both practical and beneficial to either strengthen, harmonise or protect the property for you at this time.