There are many places online where I can find koans. But I don't think a koan by itself is a topic I'm looking for on LessWrong.com, unless a poster is using it to make a particular point about rationality, a point which they explain as part of the content of the post. Plopping down a koan in front of us and expecting us all to figure out your point, or waste multiple people's time Googling when you could have simply linked to an interpretation, just isn't an optimally efficient transfer of rationality. It's not that it's bad, it's just not up to the standard of articles you've written or the general standards of LessWrong.com.
Thank you for the criticism.
I will see if I can do something to address your specific points.
Joshu Washes the Bowl
A monk told Joshu: `I have just entered the monastery. Please teach me.'
Joshu asked: `Have you eaten your rice porridge?'
The monk replied: `I have eaten.'
Joshu said: `Then you had better wash your bowl.'
At that moment the monk was enlightened.
Mumon's Comment: Joshu is the man who opens his mouth and shows his heart. I doubt if this monk really saw Joshu's heart. I hope he did not mistake the bell for a pitcher.
It is too clear and so it is hard to see.
A dunce once searched for fire with a lighted lantern.
Had he known what fire was,
He could have cooked his rice much sooner.