I always had a tough time understanding how to achieve 'no judgment' so repeatedly referred by meditation practitioners.
Everyday I practice 20 minutes of meditation using the great Headspace app.
It doesn't happen all the time but on days where I can silence my mind, I come to realize certain previously-not-so-clear concepts.
I can't tell you how great it feels to experience such breakthroughs.
Recently, what people mean when they say 'no judgment' dawned on me. I had always thought it meant "do not criticize". It is actually so much more than that.
We, human beings, are conditioned to think under a 'cause and effect' model. 'If this then that' approach. Throughout the day, we analyze everything we come across with this perception model. 'No judgment', to me, means 'stop doing that'. Stop analyzing. Stop mulling over things. Simply accept it. It is what it is, just experience it, observe it. Stop trying to classify it as good or bad, to generate opinions about it.
The following short video by Jon Kabat-Zinn explains it.
Speaking of Jon Kabat-Zinn, I highly recommend his book Wherever You Go, There You Are: Mindfulness Meditation in Everyday Life.