notes fr(om) my Rinpoche at Naropa University many, many moons ago yet
notes
your feeble teacher of no-thing has not forgotten:
“When you meditate, keep your mouth slightly open as if about to say a deep, relaxing “Aaah.” By keeping the mouth slightly open and breathing mainly through the mouth, it is said that the “karmic winds” that create discursive thoughts are normally less likely to arise and create obstacles in your mind and meditation.”