What NonDirective Actually Means
Contrary to how some things seems to be in the world of meditation, NonDirective is really what it sounds like.
It means that you don't concentrate on anything, not your breath - as in mindfulness meditation, and not even a mantra, although there is a mantra involved, I'd say it's more like you pay attention to the mantra, in much the same way that you'd causally watch a boat sailing away from you on the ocean.
In that scenario - you might get distracted from the boat - by a seagull, or passing group of people (this is like your thoughts) but you would eventually turn your head and once again notice the boat (the mantra).
You never try to abolish thought, label thought, or get rid of thoughts. You let things come as they do, nice and easy. In fact, they say if it seems hard you might be doing something wrong - and that something wrong that you're doing might be trying too hard.
What may happen ...
Eventually, you may transcend, or move past thought. In the subtler levels, below thought are many experiences, like bliss, transcendence, and "pure consciousness", which are extremely beneficial to you if you "dip into" them often enough.
You start to bring the lessons learned, and even the healthful states, and ways of thinking out of the meditation with you, and into your daily life.
Most of the issues people have with NonDirective Meditation boil down to:
- Trying too hard - focusing, concentrating
- Expecting something (not letting things come as they do)
- Thinking they are doing something wrong and trying to adjust.
I have been through each of these and they can be interestingly difficult to overcome - interesting because should be easy - don't try as hard. Don't force. Don't have expectations.
Unfortunately, in today's society, we're trained to do exactly those things. Try, force, and expect. They might be hurdles, but you'll really enjoy overcoming them.