The imbalances of Prana show up as excessive speed, haphazardness, unrhythmicaly and shallowness in breathing. These wrong habits may further manifest as jerks and bursts of breath and imbalanced breathing habits may further manifest as jerks and bursts of breath and imbalanced breathing between the two nostrils. The first step is to cleanse the respiratory tracts and lungs by Yogic Kriyas in general and Neti and Kapalabhati in particular described in the previous chapter. The second step is to normalize breathing by decreasing the manifests of imbalances and correcting the wrong breathing habits. The techniques employed come under the head, 'Sectional breathing'. This is a preparatory breathing practice and increases the vital capacity of the lungs. It has three sections
Sit erect in Vajrasana. Exhale and inhale completely, slowly and continuously. This is called Puraka. The abdomen is made to bulge continuously with the air entering especially into the lower sections of the lungs. Before exhaling stop the breath (Antar-kumbhaka) for a few seconds without any force. While exhaling (Rechaka) the abdomen is drawn, inwards continuously and slowly. Before the breath is reserved, stop the breath (Bahya-Kumbhaka) effortlessly for a few seconds and then inhale. Repeat the breathing cycle. There should be no jerks in the whole process. It should be smooth, continuous and relaxing.
The diaphragm separating the thorax from the abdomen descends during inhalation with the bulging of the abdomen. This increases the airflow into the lower sections of the lungs. The rhythmic movement in the diaphragm massages the organs o f the abdomen gently, and helps them to function normally. It promotes general circulation also.
The sectional breathing is performed while sitting erect in Vajirasana; expanding and contracting the chest only perform inhalation and exhalation. Air flows through both the nostrils slowly and continuously. The abdomen is controlled to avoid bulging out. The middle lobes are opened up fully by this type of breathing.
Sit erect in Vajrasana. Raise the collarbones while inhaling and more the shoulder backwards slightly. Keep the abdominal muscles contracted. The air is forced into the uppermost regions of the lungs thus ventilating the upper lobes while exhaling bringing down the collarbones and shoulder forward to normalcy.
The sparingly used upper lobes of the lungs will be properly aerated by this breathing.
In complete Yogic breathing technique, all the above three types will be combined. During inhalation, the Adhama, Madhyama and Adhya are occurred sequentially and during exhalation the same sequence namely abdominal, chest and clavicular breathing occur. The whole process should be relaxing and comfortable without any tension on the face.