it's hard to persuade someone  to do zazen, because there is no reason to do zazen.

those who do do it, find the experience to be very real.

so , people must be tricked into it.  this seems immoral.

however, those who don't do zazen are deluded, and we must use their delusions ,or the effect of it to persuade them

zazen is an end in itself, but unless you know this from experience, or rather your gut and spine are conditioned to  this zazen state,  you cannot be convinced to do some

so we say, zazen relieves stress. zen is cool, zazen makes you sharper at stock trading etc..

these are like the  cars that take you to the airport so that you can fly in an airplane ..