I don't think Meditations is the right place. Zazen is forgetting one's self, and my understanding is that koan are simply signposts. On the other hand, many koan are in fact classified as poems such as:

At our moonviewing party
there is no one
with a beautiful face.

Basho.

Poetry also seems to be a catchall for non-technical artistic endeavors. Though personally I would like to see a Zen theme, or node where things were renamed and organized (Meditations->Zazen), etc.

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perl -pew "s/\b;([mnst])/'$1/g"