Prana is maintaining our life

Prana is maintaining our life. Maybe we can say that the atma (the Self) is prana (energy). You cannot see prana, you cannot measure it, and you cannot destroy it. Prana comes, prana goes. Prana is connected to something for a while. Prana is in the entire body. We cannot say where the soul is located within the body. It is in the whole body. We say that God is in every heart, because the heart is so sensitive, we feel everything there. Some do not believe this and ask, how could God 'sit' in the heart. If you go to a surgeon or cardiologist and ask if he has seen God in the heart while operating, or if there is any special vibration in the heart, he will say: "No, it is the same as all other organs. It is a pump, it weights 300g and when it stops, life is gone."

Some say that God is in the brain and this is also true. In fact, God, I, or the soul cannot be centred, because it is everywhere. That's why Self-realisation is a great problem for many people. Many people think, "When I get Self-realisation I will see my Self in my heart, and know: 'Yes, this is me. Now I can see it!'" But it is not like this. It is very hard to explain what Self-realisation is - what you realise and how you realise the Self. Self is not like the body, which you can see in a mirror or on a photo. How can you see the Self? Self is not like a picture or something that you can close away and say, "Now I have Self-realisation". It's not something that you can have. Self, prana, mantra and life you cannot describe. You can talk and talk, yet however hard you try, the Self is still something different. You cannot define it. It's like an onion: you take away all the layers, but still you cannot grasp the "onion". 

http://spirtualworld.blogspot.com/p/online-initiation-c-ompletely-free-of.html