Can meditation influence your chess?

Recently I found an interesting interview to GM Jonathan Rowson
http://www.tm.org/blog/people/british-chess-champion/ 
In it he explains how meditation had a profound impact on his life. Also he reveals that before every serious game he devotes 20 minutes to meditation. You can read more at the above mentioned website. 
A couple of years ago I  discovered a site where I was taught to meditate (and much more) for free  http://www.aypsite.org/MainDirectory.html in a friendly non dogmatic way. I feel that meditation has improved meaningfully my life and my approach to chess as well.
Also, people who are interested in learning an inexpensive techinique leading to a stress-free life may give an eye to this link http://www.nsrusa.org/  A friend told me it works.