[escolubtessen]

I do not do Jhana; I still practice Zazen. I can not tell about Jhana.

Which is unfortunate, given that Pali "Jhana" -> Sanskrit "Dhyana" --> Chinese "Ch'an" --> Japanese "Zen". Jhana starts out with a clear definition, and at the end of the chain "What is Zen?" becomes a koan. Alas!