Sri Guru Jaganatha Dasaru, in his Sri HariKatahaAmrutha Sara’s 4th padya of mangalacharna sandhi prays to Shri Vayudevaru in this form:
Aaru mU rEradondu sAveera, mU rEradu shata swAsa japagala
MUruvidha jEvarolagabjaja kalpa pariyanta
TA rachisi, sathvarige sukha samsAra mishrariga dhama
JEvarigapAra dukha galEva guru pavamAna salahemmA
In our life, the One and the most important work is performed by Vayu Devaru that is breathing. Without breathing there is no life. While breathing he is performing a very important japa called Hamsa mantra (ajapaa-japa). Vayu devaru performs this japa without our knowledge. On an average a human being breathes twenty-one thousand six hundred times in a day and by this process he performs HAMSA mantra unknowingly-knowlingly (ajapaa-japa).
Why it is called as ajappa-japa?
Generally, most humans do not know this and that is the reason it is called as ajappa. However, if one comes to know this concept, and acknowledges, and thank Vayu devaru for performing hamsa mantra in us, it is called as japa. By acknowledging Vayudevaru, one will get punya.
What is HAMSA mantra?
“HAM” is the sound of the breath on our exhalations and “SA” is the sound of the inhalations. If we close our eyes, focus, and observe the breathing we can hear the humming sound of our breath, as “hmmm” on the inhalation and a sighing “sa” on the exhalation (ham – sahaa). The inhaling and exhaling (rechaka and puraka) is called are the two faces of every breath.
Point to note is that internal clock and the external clock are not synched typically. For the internal clock to match the external clock, one should breathe 21600 times in a day.
What is the basis for breathing 21600 times is equal to one external day?
Generally, one man takes 4 seconds for a breathing cycle, two sec for inhaling and two sec for exhaling. With this base, if we calculate: in a minute one performs 15 breaths (60/4), for one hour it is 900 (15 * 60), and for a day it is 21600 (900 * 24).
However, we can change this cycle, for example, after exercises we would breathe faster, and can take two seconds for a breathing cycle instead of the normal four seconds. By this we increase the speed of inhaling and exhaling, and will complete one external day 24 hours within 12(internal clock). If we practice pranayama and increase the time for each breathing cycle for 8 secs, then our external clock would have clocked 48 hrs and our internal one would have clocked just 24 hrs.
Our ayasu (age) is based on inner time, and not on external time. That is the reason why pranayama was emphasized in sanatana dharma. This is the reason why the elders bless sathamana bavathi (let god bless you 100 years). 100 years is the life term for a man as per inner time, a man cannot live more than 100 years. That is 1 day = 21600 breathing cycle, for 1 year = 360 days = 7776000 cycle, and for 100 years = 777600000
If one performs kumbaka for 10 secs, then the inner time stops for that period, so you increase your life term with respect to external time. By performing Pranayama, one can slow down getting old in internal time, and increase his lifespan in external time.
What is the meaning of ham sahaa?
Hamsa means, god = sachidananda. He is ham = hana (one who does not have any dosha) = sat, dosha varjitha. Ham = napunsaka God does not have any dosha that a purusha has, that is why we use napunsaka linga.
Saha means = sara swarupa ( gnyananda swarupa) . Saha, purusharali uttama purusha = Jeeva, puman = either may be male or female.
Hana = tyaga, saha = sarvasa.