Nadi means the pulse and pulse is the dual action, the manifest to the unmanifest and unmanifest to the manifest, the form to formless and formless to form. This swing that's what the universe is.

*Chapter 8 - Beyond Miracles* 

*Day 41*

Question - If the infinite self wants to see itself in its true nature without form, what's the purpose of attaching itself to this body and all forms that we sense? Why not remain at all times without attachment? Also if the universe is expanding, what is it expanding into?

Gurudev - Do you know what pulsation means? It is what the heart beat is. It expands and contracts and only then it pulsates. Life is pulsation. It's an expansion, contraction, expansion and the universe is pulsating like this. 

So when it is going like this you feel it is expanding, but you don't see it coming down like this. There is a pulsation because the universe is alive and anything that is alive has pulsation and pulse.

Nadi means the pulse and pulse is the dual action, the manifest to the unmanifest and unmanifest to the manifest, the form to formless and formless to form. This swing that's what the universe is.

- Gurudev Sri Sri Ravi Shankarji

Kena Upanishad