answer:No, I don’t believe there is. There is a correlation between the breathing pattern and your state of mind. When you’re anxious you breathe one way, when you’re relaxed you breathe another. There’s a case to be made for the wisdom of the body. For the most part, it breathes the way it needs to breathe. Where meditation is concerned, this means that the breath adjusts automatically in response to the mental settling that occurs as you meditate. You don’t need to make this happen. Suppose you’re meditating and you feel anxious and you want this to go away. So you begin to consciously manipulate your breath, slowing it down and getting it down into your belly, like you’re “supposed” to do. But the fact is that you’re anxious, and your body needs to breathe in a particular way when it’s anxious. Try to breathe otherwise and you’ll tend to feel like you’re not getting enough air. This will actually ratchet up your anxiety, and it turns into a fight between your will to impose a certain way of breathing and your body’s natural instincts. Now suppose again that you’re meditating and you feel anxious. But rather than wanting that anxiety to go away, you simply accept that this is just the way you happen to feel at the moment, and that’s OK. You put your attention on your breath. It’s fast, shallow and chesty, because that’s how your body needs to breathe when it’s anxious. So that’s OK, too. You keep your attention on the breath, without any effort to control, just observing how it is moment by moment. This is itself relaxing. Gradually, your breath will begin to respond to this relaxation, slowing down and settling into the belly. And this all happens without your trying to make it so. Having an idea about how you ought to be breathing is entirely unnecessary.