It is variously called samatha, concentration meditation, anapanasati, silence, pacification and the technique of irritability. I like to call it shrinking.
Sometimes I'm asked how to do it. It's as straightforward as pushups. No rocket science here. And it's also as difficult as pushups. And the more you do it the better it gets. And there are depths beyond depths. If you want magic, power and a nice high, you can go wronger. And if you are a sperg then you have a definite leg-up.
Sit down in your meditation spot. Back straight. Breathe from your belly. Eyes closed. Relax.
Put your attention on the feeling of breath in the tip of your nose.
(Give the end of your nose a little pinch. Feel that? That's where you put it).
The game is to hold your attention on the tip of your nose without moving it.
You will get distracted. Your attention will get drawn to other things. You will have all kinds of interesting thoughts, feelings, etc. You will daydream.
Whenever you catch yourself doing that, put your attention right back on the tip of your nose again.
Keep it there as perfectly as you can.
That's it. That's the whole technique.
