In thinking about serenity and realizing its great value, we would love to be serene all the time. But this is not possible in the world in which we live. In the totality of our lives we will experience a wide range of human emotions, not all of them the ones we would choose for ourselves if we could have total control over our feelings.
So now we have a choice. We can acknowledge our emotional reality at any given moment and from there work our way to true serenity. Or we can deny our true feelings. We may deny our insecurities, anxieties, worries, frustrations, disappointments, etc., and think that because we want to be serene, these feelings do not exist. Let us state clearly: Only by being in touch with your feelings will you be able to truly experience serenity.
(From Rabbi Pliskin's book, Serenity, p.80)