Runes are entire words, much like Mandarin/Kanji/Cuneiform. Each has a very specific and literal meaning.
The rune for "contain"
means that the spell is contained within the circle. You can't use this rune to contain someone within a cage. The runes above are
as follows: Sustain, Create, Contain, Fire, Small
The basics of spellcraft and spellcircles consists of an outer circle (in blue) and an inner circle (in red). The red circle is the focus
for the spell, the blue circle will contain runes to modify and affect the red circle. You can have as many circles within one another
as you want, the more complex the spell you want to cast. For example, a fire spell (no matter what you want to do with the fire)
will have a fire rune occupying the red inner circle)
For one circle to affect another it must be linked to it with a curved line as shown here. To create fire you must link the create rune
and the fire rune.
If runes are affecting one another *within* a circle, you must show which is affecting which. For this, edges are used. The "circle"
with the most edges affects the "circle" with the least, with a true circle being the last affected. Runes going from an outer circle to
an inner one do not need to show order of operations.
If one wants to create a spell that excludes something, one shows that by a circle around that rune, physically excluding it from
the rest of the spell. For example, if one wants to create a dome wherein water does not come. One would link the dome rune
(shown for argument in blue) with the rune for water (in red), thereby creating a dome wherein water cannot come.
If one wants to modify a rune rather than affect it, a smaller circle is placed overlapping the rune in question creating a combined
rune. This combined rune is then effected by all runes interacting with them. For example to create a small fire one would overlap
the fire rune with a small (for simplicity's sake) rune.
Here is a very simple spell incorporating nearly all stated above using the runes already explained. It is a campfire spell. The
central Fire rune is modified by the Small rune. This combined rune is affected by the Sustain rune (ensuring it will keep for the
night), the Create rune (to make a difference between using fire that is already available and creating it from nothing) and the
Contain rune (to keep it within the boundary of the spell so that it will not go out of control).