How to differentiate between natural vs artificial breathing pattern during meditation? When we do a simple observation of breath (in &amp; out) during meditation, how to know if its natural flow I am observing or forced one?

Regards
If your aim is vipassana then what forced the breath? If the breath is forced or not forced that is what is and can just be witnessed mindfuly as it happens. If the breath was seemingly controlled by you, were you in control if you couldn't even tell when you were forcing it or not?

If you just keep watching mindfully then you will see everything is rising and falling constantly while being forced  by nobody. 

This tripped me up in the beginning. I was told to let it go because if I was controlling it or not, ultimately I wasn't in control anyway.


  In whatever way objects come, do not try to change them. Whatever comes is the buddha-dharma, not objects at all.  Even if you try to control what comes, it cannot be controlled. -Dogen