Emotions serve a purpose.  Caused by your thoughts in the first place,
emotions then cause the body to secrete certain hormones dependent upon the
emotion.  These hormones then cause what
you call a “feeling” within the physical body. 
At times these feelings are pleasurable; at times distasteful.  No matter whether preferable or not preferable,
the feelings impel you to act.  In so
doing, change occurs.  Do you see the
perfection?

Life is about growth …
evolution toward a more profitable state of consciousness.  If there is no change, there is no
growth.  At times, there is decay instead
of growth, but the natural impulse is toward growth, which is why the human is
drawn toward pleasure and repulsed by pain. 
See your emotions for what they are: 
catalysts for change, and then notice how every thought results in an
emotion.  And then realize that you
control whether you grow, decay, or stay the same.

If you desire to grow and
fulfill your reason for being here, be aware, and act as a truly sentient
being.  Your life will flow all the more
smoothly as a result.