In contrast, in the Mahamudra and Dzogchen approaches to waking up, the teacher comes into our room while we are still sleeping and throws a bucket of ice water onto our bed. That is our wake-up call, and we usually "get it" right away. We have no choice but to get up. We are so irritated - but so awake.
you probably do not know me... Even after this I may still continue to sleep
Thats when the Shinai comes out. If the student doesn't get it after the speaking, the ice water and the grunting...
Its all about the Shinai.
While everything changes, nothing is truly lost.