Oh,

You are right. My reply was too simple.

Yes, Concentration is really important because we need to be aware of other changes around us. Other peoples negative attitudes can also impact upon us so we sometimes need to be doubly aware.

I can't be specific here but I am almost at a point that proves these facts to me.

Roger

Noted your point with thanks.

You too raised a valid point that we should aware of the negative attitudes from other peoples, which are very common to any given environment. We must always be careful to learn from those people who had made it, and not from common people.

Trust the above is of assistance to you.