It simply means that Science as of now does not know what hadrons are made up of. After all the inability to discover something does not mean that there is nothing
Science can never have the complete answer to understanding matter as long as it refuses to explore the subtler worlds and forces that weave matter. And to understand all this it must take yet one more step further, to discover the Divine Reality that is the origin of everything.
Essence of everything is Brahman, not only of the material world. Brahman is not an empty Void. It is just that all our ways of measuring, defining, qualifying cease there, in that ineffable Peace and Light and Bliss.
Also, Can you state some arguments for How the physical world is not everything, and the science has not discovered 1% of what universe is.
It is so obvious, isn’t it? If physical world and matter is everything then how does one explain the energence of conscious thought and experience in unconscious matter, – random chance? But how do random events bring out something that is apparently not there. It is discussed nowadays as the ‘hard problem of consciousness’. I have myself written a lot about it which you should be able to find in articles in NAMAH as well as talks on Auromaa. There are plenty of Letters on the subject by Sri Aurobindo.
Affectionately,
Alok Da