There is nothing external to us than can cause us emotional harm. Being insulted, outraged, disappointed, angry, scared or hurt is completely the result of our thought about what we encounter.
Even if the source of our experience was designed to impact us we have the choice to dismiss it as representation of the source,not an indictment of us.
Perspective and perception controls feelings.
Feelings empower thoughts.
Powerful thoughts focused upon create experience.
Not only is it wise to be the master of our thoughts, when we pair this practice with the perspective of non-attachment allowing external stimuli to simply be as they are without personal investment we can be driven by our desires and passions NOT tossed about by conditions.
Being attached to and dependent upon only the SELF is freedom.
Let go!