Raku refers to a method of firing wich derives from an ancient Japanese technique and is associated with Zen philosophy and practise.
Raku is seen as a spiritual proces and is the most respected form of making/ finishing / firing techniques in  Japanese ceramics.
There are many factors and variables involved in the Raku proces, always dependant on the dynamic principle of chance.
Thus the artist does not have absolute control but is more an active participant in the process.
In the way each individual piece is a unique expression of this relationship and the particular creative event from wich it arises.