Guruji/Sri Sri Ravi Shankar on Pranayama with Alternate Nostrils/Nadishodhan pranayama with video tutorial below
When your right nostril is predominant or more active, then the rate of metabolism is twice! (he asked doctors present there to take this up as a topic for research) So when right nostril is active, food intake is called for! Or Knowledge can be shared.
When left nostril is active, then it is appropriate for singing, dance, music and meditation – no talk is required or less talk is preferred.
Then there are 5 Upa Pranas – these are responsible for burping, sneezing, yawning, hiccups, twitching of eyes etc. (I did not get all the names but last 2 were Devadatta and Dhananjaya)
It is a deep knowledge – how these Pancha Pranas and Upa Pranas enter the body and leave the body. Amazing is the realm of Prana. If you master Prana, you would gain a lot of knowledge on life and environment.
In old days or ancient days, beloved or sweetheart was called as Pancha Prana – You are my heartbeat or sweetheart used to be ‘You are my Pancha Prana’
Prana flows through our body in 186000 different channels or nadis and each of this channel or nadi has a specific purpose or function!
This is just to bring to awareness that knowledge on Prana is so vast, what we think we know on breath is nothing!