Dhuka (pain) 
The presence of pain either physical or mental always shows some serious disharmony. Physical pain is sign of positive disease while mental pain shows definitely that the mind is not in a healthy state. It is either in a state of inner conflict, torn between opposite desires or under the domination of Kleshas. Pain is an indication provided by Nature to bring to the notice of the person concerned that all is not well with him. 

Daurmanasya (despair) 
When pain is combined with a consciousness of impotence or incapacity to remove it effectively, it leads to despair. 

Angamejayatva (nervousness) 
Despair then leads to nervousness 

Svaasaprasvaasaa (hard breathing) 
Nervousness when it reaches a certain degree of intensity disturbs the breathing by disorganizing the flow of prana energy resulting in hard breathing. 

Removal of Vikshep (Distractions or obstacles) 
"Maitri – karunaa – muditaa – upekshaanaam - sukha - dukha – punyaapunya – vishayaanam bhaavanatas - chittaprasaadanam (PYS Ch l, Su-33)" 

The mind becomes free of vikshep by the cultivation of the attitude of friendliness, compassion, gladness, indifference towards joy and sorrow, virtue and vice. 

One of the greatest sources of disturbance to the mind is our uncontrolled reactions to our human environment, to what people do around us and to the pleasant or unpleasant conditions in which we get involved. An ordinary man has no well defined principle for the regulation of these reactions. He reacts in a haphazard manner according to his whims and moods as a result he is constantly disturbed by violent emotions. If our behavior and attitude is governed by the above principles of friendliness, compassion, gladness and indifference to joy and sorrow, virtue and vice then our minds will be free of much disturbances helping us to proceed with higher spiritual growth. 

"Vitarka-baadhane-pratipaksha-bhaavanam" (PYS Ch 2, Su-33) 
When the mind is disturbed by negative thoughts constant pondering over the opposites is the remedy. 

The aspirant brings with him the momentum of all kinds of tendencies from past lives and in spite of his resolve the undesirable habits and tendencies in which he has indulged earlier assert themselves strongly and force him to act, feel and think in ways contrary over the opposite when the undesirable tendencies trouble him. This is one of the most important aspect of character building.