The rational mind can rule over the heart (Tanya ch. 12).
Two hundred years ago, Rabbi Schneur Zalman stated this fundamental principle: our minds can control our emotions. When people do not use their minds to their full capacity, their emotions take charge.
Anxiety is one of the most frequent symptoms that bring people to the psychotherapist's office. It is defined as a feeling of intense fear that occurs in complete absence of any actual threat. Anxious people readily admit that the fear is groundless, yet emotionally they cannot subdue it.
A method of treatment of anxiety, known as "Mental Health Through Will Training," was developed by Dr. Abraham Low. His system strengthens people's rational capacity in order to master their runaway emotions. While some types of anxiety come from biochemical causes, and therefore require medical treatment, his method has proven itself to be an effective approach to conquering anxiety.
Too often, people resign themselves to a state of helplessness and allow themselves to be overwhelmed by stressful emotions. We ought to have greater respect for and confidence in our rational power.