Inhale and exhale alternately through the left and right nostrils, so that the Kundalini energy continues to circulate in the Ida and Pingala nadis on both sides, and gradually rises up in the middle Sushumna nadi. Kites also fly like this. When the string is loosened, sometimes it spreads in the sky on the left side due to the slap of the flowing wind, and then when pulled, it climbs straight up. Sometimes due to wind blowing in the opposite direction, it spreads in the sky on the right side, and then when pulled, it rises straight up. By swinging both the sides, it remains straight above the man’s head even after reaching a great height. This straightness is equivalent to Sushumna Nadi. Even at the time of Kundalini Yoga, when there is a lack of prana in the left side of the body, and the body is left loose, the Kundalini starts flowing in the left side of the body i.e. Ida Nadi. Similarly, when there is a lack of prana in the right side of the body, the Kundalini is felt to flow in the right side i.e. Pingala Nadi. It seems as if there is a energizing movement that’s blissful, I do not feel the pulse like a thin wire with any current. It may be impractical book talk or realized in high level practice. I feel a lot of power just from its simple experience. Even in the sky, the wind blows towards that part, in which the pressure of the air decreases, that means the life force decreases, because air is the life force. It is natural from this that Kundalini or mind or kite moves in the same direction with the flow of prana or wind. Then when the wind or Prana increases there, it runs back a little in the opposite direction, along with which the kite or Kundalini also flows, and suppose it comes directly above the head or in Sushumna. Stopping there for a moment, the Vayu or Prana reaches the right sky or Pingala, along with which the kite or Kundalini is also there. From there the journey on the left side starts again. This kind of pendulum-like oscillation of the Kundalini-like mind or kite goes on, and it keeps rising up in the Sushumna or in the sky.
When the kite rises very high, then it is brought down by pulling on the string. Similarly, when the Kundalini rises high enough to cause pressure, fatigue, and headache in the brain, then the exhalation starts moving with jerks. This happens in Kapalbhati Pranayama, where the outgoing breath moves with jerks and pressure, but the incoming breath moves so quietly and slowly that it is not detected. Due to this, there is more awareness on the exhalation. Along with this, the muscles of the body also push down. Due to both these things, the Kundalini energy descends down the front channel, due to which the pressure in the brain decreases and the person gets refreshed and ready for mental work again. Kapalbhati produces miraculous effects. That’s why only this kind of breathing is done during work pressure and lack of time, it gives a lot of benefits. Let us tell one thing here that the mind-kite does not stay down permanently, it then rises up through the back channel. It keeps on rotating up and down. It is like if a kite is given a slight pull or tunka or jerk, it rises higher. Breaths are actually the strings of the mind, as it is often said that the string of breaths of so-and-so has been drawn long means someone survived, or the string of breaths broken means someone has died. In Shrimad Bhagwat Gita, when Arjuna says to Shri Krishna that Lord, it is very difficult to control the mind, even more difficult than controlling the wind, then Lord Krishna says that O Kaunteya, the mind is controlled by practice, Especially through the practice of Pranayama.
While taking a bath with cold water, the breath starts moving out rapidly and with jerks. Most of the time the mouth is also completely open, through which the breath comes out like a bellows. Due to this the pressure of the brain comes down, which prevents headache. Probably the risk of brain hemorrhage also decreases. This increases the ability to withstand cold water and it starts to feel pleasant. Similarly, almost the same thing happens with Vajrasana after eating food. With this, the power of the brain descends to the digestive organs, due to which digestion is cured. This style of breath is Kapalbhati only.