You can’t place pressure on the breath. As soon as you do, you’re not really focusing on the breath, you’re focusing on the solid or the liquid parts of the body. The breath is something that flows back and forth or stays still, but you can’t catch it. You can simply be aware of where it is.
"Give the mind a chance to settle down, and try to learn just the right amount of pressure to put on the breath to keep it there. For a lot of people, if you could take a picture of what they’re doing to their mind as they’re practicing concentration, it’s as if they’re strangling it, which is why the mind rebels. Other people are just barely touching it, so of course the mind wanders off. The Canon has an image of holding a baby chick in your hand. If you squeeze the chick too much, it is going to die; if you hold it too loosely, it’s going to fly away. So you have to be sensitive to what’s just the right amount of pressure to place on the breath, to place on the body. Actually, you can’t place pressure on the breath. As soon as you do, you’re not really focusing on the breath, you’re focusing on the solid or the liquid parts of the body. The breath is something that flows back and forth or stays still, but you can’t catch it. You can simply be aware of where it is. ...