You can always ask. Zendo is supposed to be about a dialog between the master and students. The students should just say "master, is it your intention that this pyramid points directly at this corner of this pyramid?" or maybe "master, would you say that this pyramid points at this vertex?"
Hmm... I thought the master was supposed to answer questions about his understanding of what is, not what he intended something to be So, "Do you consider this koan to have this quality?" But not "did you intend to have this quality in this koan?"
No good master will let you babble around for two hours and then throw back a "ha! The pyramid in /this/ koan is .01 degrees off of pointing that this vertex!" Just talk about it.
Right, so the master should choose a rule that the students can guess, so appropriate for the level of the students involved. *Everyone* loses if the master fails to choose a guessable rule. Timothy