Editing Qi (section)

===Feng shui===
{{Main|Feng shui}}
The traditional Chinese art of [[geomancy]], the placement and arrangement of space called [[feng shui]], is based on calculating the balance of qi, interactions between the [[Wuxing (Chinese philosophy)|five elements]], [[yin and yang]], and other factors. The retention or dissipation of qi is believed to affect the health, wealth, energy level, luck, and many other aspects of the occupants. Attributes of each item in a space affect the flow of qi by slowing it down, redirecting it or accelerating it. This is said to influence the energy level of the occupants. Positive qi flows in curved lines, whereas negative qi travels in straight lines.<ref name=":1">{{Cite book|title=Feng shui : how to create harmony and balance in your living and working environment = Fêng shui|last=Henwood, Belinda.|date=1998|publisher=Raincoast Books|isbn=1-55192-132-4|location=Vancouver|oclc=37985099}}</ref> In order for qi to be nourishing and positive, it must continue to flow not too quickly or too slowly.<ref name=":1" /> In addition, qi should not be blocked abruptly, because it would become stagnant and turn destructive.<ref name=":1" />

One use for a ''[[luopan]]'' is to detect the flow of qi.<ref>{{cite web|last1=Field|first1=Stephen L.|title=Qimancy, Chinese Divination by Qi|url=http://www.fengshuigate.com/qimancy.html|website=Professor Field's Fengshui Gate|access-date=7 November 2017|archive-url=https://web.archive.org/web/20170223065625/http://www.fengshuigate.com/qimancy.html|archive-date=23 February 2017|date=12 February 1998|url-status=dead|df=dmy-all}}</ref> The quality of qi may rise and fall over time. Feng shui with a compass might be considered a form of [[divination]] that assesses the quality of the local environment.

There are three kinds of qi, known as heaven qi (''tian qi'' {{lang|zh|天气}}), Earth qi (''di qi'' {{lang|zh|地气}}), and human qi (''ren qi'' {{lang|zh|人气}}).<ref name=":1" /> Heaven qi is composed of natural forces including the sun and rain. Earth qi is affected by heaven qi. For example, too much sun would lead to drought, and a lack of sun would cause plants to die off. Human qi is affected by earth qi, because the environment has effects on human beings. Feng shui is the balancing of heaven, Earth, and human qi.