It isn't known by the physicists - yet. Why? Because they do not meditate.
How do we experience it then? This is a little bit tricky and most of the people would not even try to find out. First step is to believe it is all real. Next step is to practice until one achieve it. That's it. So simple.
But most people are not willing to do it. There can be many reasons for it. They may not belive in it or they may not be interested.
But the divine light is as real as your living day. It is a part of the reality - it exist as everything else that exist.
The way to experience it is a little bit tricky. It requires that we stop thinking. Most people will tell them selves that this isn't possible, but I can assure you it is possible.
This brings us to the emptiness where no thoughts exist, only darkness in deep silence. We are only conscious - nothing more. We have no access to our memories, we only experience complete silence in a dark emptiness. Scary? No, it is actually a relief.
But can you manage this? Will you ever try? Even if you try, how long will you go on without to give up? You may not achieve this in your first try. Would you try a second time and a third time? Even after multiple times you may not be able to silence the mind completely. But the more you work on this the better you will be at it and later you will be able to stop your mind and you will eventually fall into the absolute emptiness.
This is the first step one has to achieve before one can experience the divine light within.
The second step and last step is easy. Once we are in the absolute emptiness we have to do only one thing. We will just move out from the body backwards. We only need to execute that feeling. We still do not think in our language that derives from our memory, this is all about using our pure feeling. When this is executed correctly - Bam! We are now transcending into the divine light at the same time we are leaving the emptiness, our body and the whole material universe.
In this stage we are experiencing the ultimate reality. The reality cannot be felt more real than this due to its absolute nature. We also enter into a super conscious state and we feel eternal young. The light is brighter than 10 000 suns. Our knowlendge expands into infinity. Here we experience true love, ecstacy and ultimate happiness. We are and we see the light at the same time. It is a non-dual expetience.
This is indescribable and must be experienced in order to gain a correct understanding. People who only listen to my words can only speculate about what this is, but this reality is beyond speculations and cannot be understood by understanding it through readings - it has to be directly experienced, there are no other ways.
I may write about the method from begining to end in a more detailed way, minute by minute or even second by second. But I wanted to save that for later. But this is the way and there may be many different technics out there to achieve those stages I wrote about. But the main thing is to reach complete emptiness and then go from there into the divine light.
This has been known by humans for thousands of years. Seek and you shall find - or continue to ignore its existence.
Look up the word 'brahman' to know more about this.
One day I hope science will look into this because this is a missing piece that the science need to understand the reality we live in.
I can answer all questions and I will make things as easy as possible for you to understand. It is easy to understand but not so easy to achieve. The theory is not hard to understand it only needs a lot of practice. The door is open for everyone to step inside. There is no difference between you and me, we all function in the same way because the reality made us in this way.