Being self-aware and having the capability to think and feel emotions with clarity and understanding is part and parcel of being human. Unlike animals, our thought processes rely on far more than instinct alone.
Because of this, there is scope for the way we think to become a problem and to affect our emotions. If we go back a few hundred years we can see that psychological issues were approached with fear and unnecessarily invasive treatments. Thanks to the evolution of science and technology we now have a clearer understanding of the human brain and are able to look at these issues in a different way.
Today, the art of talking therapies such as counselling are used to help people come to terms with any problems they are facing, with an ultimate aim of overcoming them.