No -- the real test of something like "Zen" is whether it helps you engage every natural situation of this life, or fails you exactly when you need it the most. Given that clear fact, what else can be said? "Intoxicated by the moonlight," maybe!
There are "Zen" practices and forms of training that were effective in equipping people with the equanimity to cut their own bellies open, like tea master Sen no Rikyu, when there was no other way to face reality. Do you have that kind of ability? Do you even want it?
Charcoal, though placed exactly according to teaching, is dead charcoal if it does not boil the water. - Rikyu