Meditation, the technique of focusing the mind while deepening the breath, is a popular practice for people who suffer from stress or anxiety. Learning to breathe properly during meditation is an essential step in attaining the beneficial effects of meditation, which include tranquility, peace, restfulness and reduction of stress. Close your eyes. Let any stray thoughts in your mind trickle to their natural end. Then, concentrate on nothingness.
Have a great meditation...

i think some light exercise like yoga can give a better breathing capacity.....

How do you just think of nothing? I find that extremely difficult.
Which may be linked to my low breath capacity... I've been told to focus on breathing deeply but then that leaves me out of sync with my breathing rate compared to my thoughts.

George's technique sounds a lot like hatha yoga.

There are more techniques then there are people. Thinking is the thing you are trying to shut down. Some people try the idea of focusing on one thing first. Their breath, a sound, the cavern inside their own head. Deep concentration like that shuts down the senses and the internal minutiae. Now comes the hard part, making that last focal point of concentration disappear. Like closing your eyes shuts off vision. Now your mind is like a still lake. Few people can achieve it. But everyone can get the benefits from even getting close for a brief second.

The breath during these times is slow and rhythmic. Some people use deep breaths to produce a kind of falling away effect. Others use a bright light in the center of their forehead or an ever decreasing circle around them. You tune in by tuning out.