A woman is perturbed by what a man forgets---a man by what a woman remembers.
. . . looking angrily at the wombat: and a moment later, 'Come now, Stephen, this is coming it pretty high: your brute is eating my hat. ' 'So he is, too,' said Dr. Maturin. 'But do not be perturbed, Jack; it will do him no harm, at all. His digestive processes--
To meditate means to realize inwardly the imperturbability of the Essence of Mind. The reason why we are perturbed is because we allow ourselves to be carried away by the circumstances we are in. Those who are able to keep their mind unperturbed, irrespective of circumstances, have attained Inner Peace.
By nothing,under no conditions, be ye perturbed.