Observing the Swara:
Strong inhaling from the nose allows the individual to understand which nostril has a dominant flow at a particular time. The stronger nostril-flow will have a particularly heating or cooling effect. At any given time, in the human body, only one nadi or nostril-flow, the left or the right, will be dominant. The left flow is known as IDA NADI or CHANDRA NADI, relating to the moon; and the right flow is known as PINGALA NADI OR SURYA NADI, relating to the sun.

Great men have used many innovative ways to cause immortality and longevity for themselves. Men of letters have the creative capacity to immortalize themselves. These are other men who have used different approaches to cause immortality and longevity for themselves and the history is star studded with these noble human immortal personalities.