Wisdom or Despair?
Many (most?) people come to mindfulness (MBSR) because they find life unpleasantly stressful and understandibly want to be more comfortable. At some point, however, people realize that comfort at the level of "ordinary unhappiness" is just not good enough. Then 2 choices remain: wisdom or despair? http://healthyhealers.blogspot.ca/2012/03/aging-wisely.html
Mindfulness training is, from my experience, a very skillful way of gently guiding a wide range of people from despair, towards wisdom. Mindfulness uses a slow, gentle approach.
Zen also leads to wisdom, but in a Samurai or Marines style - as directly & as efficiently as possible. Zen is ideal for the individual with a "healthy ego" - a relatively rare phenomenon.
“Zen practice can be a tricky thing because, done right, sooner or later all the issues and energies you’ve been repressing your whole life will ooze, trickle, and burst to the surface through your tight little smile. And I’m afraid that the practice itself doesn’t necessarily equip you to deal skillfully with these issues and energies. This is one of the great misconceptions about spiritual work: that if applied correctly, it will make us ‘better people’ (whatever that means). Zen is not a psychiatric or therapeutic discipline; it’s a spiritual one. It’s supposed to get energy moving on a deep, fundamental, life-changing level. Its purpose is to orient you toward the truth, toward reality, whatever this takes. It’s not supposed to boss you around with behavioral or self-help dictates or to shoehorn you into the slipper of well-adjusted citizenhood.
In other words, spiritual work isn’t always just ‘instructive’ – it’s also transformative, and this kind of transformation can get messy.”
Shozan Jack Haubner. “Zen Confidential. Confessions of a Wayward Monk.” Shambhala, Boston, 2013.