There are two basic steps to good permaculture design. The first deals with laws and principles, while the second is more closely associated with practical techniques.
The principles are inherent in any permaculture design, in any climate, and at any scale. They are, briefly:
Relative location: every element is placed in relationship to another so that they assist each other
Each element performs many functions.
Each important function is supported by many elements.
Efficient energy planning for house and settlement.
Emphasis on the use of biological resources over fossil fuel resources.
Energy recycling on site.
Using and accelerating natural plant succession to establish favourable sites and soils.
Polyculture and diversity of beneficial species for a productive, interactive system.
Of all the principles of software engineering which has fallen by the wayside in the modern “move fast and break things” mentality of assholes modern software developers, reliability is perhaps the most neglected, along with its cousin, robustness. Almost all software that users encounter in $CURRENTYEAR is straight-up broken, and often badly.
We can easily imagine from our own experience why fire might be used as a symbol of the life of a house and the family that lives there. The fire was certainly the most lifelike element of the house: it consumed food and left behind waste; it could grow and move seemingly by its own will; and it could exhaust itself and die. And most important it was warm, one of the most fundamental qualities that we associate with our own lives. When the fire dies, its remains become cold, just as the body becomes cold when a person dies. Drawing a parallel to the concept of the soul that animates the physical body of the person, the fire, then, is the animating spirit for the body of the house.