As long as I can keep my focus in the breath,
Can I observe memories and thoughts arising?
Doesn't it mean that I have missed my focus in the breath?
If you are stuck on an emotion or a thought,
That already means that you lost focus on the breath.
If there is a sound from the outside and you find yourself focusing on the sound,
Which means that you already lost the focus on the breath.
However,
Even if you are focused on the breath,
You may register a sound from the outside.
Likewise,
You can have a temporary thought that arises.
But if you are able to maintain focus on the breath,
Those thoughts will expire itself very quickly.
And other thoughts will come,
But they will also expire.
You will have a constant cycle of something arising then expiring.
But if you have one piece of thought that kind of lingers,
That means you already lost focus on the breath.
Of course,
If you purposely engage in kind of a rough breath,
Breathing,
Then I guess it's possible for you to maintain focus on the breath while you also have a lingering thought.
However,
Then you kind of take away from the original intent from the breathing meditation practice.
And since you are trying to engage on a really subtle movement of the breath on the tip of your nose,
But at the same time,
Being focused on the pain in the leg is meaningless.
So in other words,
If your thoughts kind of arises and expires,
Arise and expires quickly,
That means you are able to,
You are maintaining focus on the breath.
However,
If there's a thought that lingers,
That means you already lost focus on the breath.