There is a Zen story where a young novice approaches the master asking how he could achieve his wish of experiencing true enlightenment.
Without a word the master roughly grabbed the young man and dunked his head underwater in a nearby horse trough. He struggled for some time until the master released him, sputtering and gasping for air.
"When you desire enlightenment as much as you craved air just a moment ago, then you will find it," said the elder monk.
A bit extreme