Being human means we have a choice and can learn to be good at choosing. We can choose to let the chatter rule, let the winds blow, to be subject to the whims of the mind.
Or we can choose to be our own master, to tame the wind.
In a still mind, truth and peace are known.
If I have ever reached a still state of mind it was short-lived, but even that brief experience approaching stillness gives me faith that statement is true.
Mystics of many faiths have talked about the peace of mind that comes with stillness, but we should not take their word for it. We should experience this stillness ourselves. Think of it as an experiment.
Think of it as a challenge.
I suggest that this is the greatest challenge facing humanity today.