This thread is interesting. I shared a poem that seems to be on this a while ago, . At the time, I thought that it was quite fresh, and insightful on Ko Un's part, but apparently not. I wasn't aware that this issue has been deeply studied by different traditions already.
The attitude towards Ananda, especially what's been shared in this thread, is a bit disturbing for me... not to mention what seems like a kind of nitpicking (more than likely it's just my perception) by the arahants. This doesn't seem to be in spirit of the liberation.