Humanity is Religion

The rules of Sustainable Humanity is Sanatan Dharma

Castes by qualities not by parentage 

It's universal truth for all societies in the globe in every arena where we selection of right individual for the job, right individual for the training or education matters. It was practised always in the past, being practised today, and shall be there for ever  - i.e. why Santana Dharma , the key contributor to sustainable humanity. 

Om Tat Sat - Om, Only that is truly divine (whose reflection breeds humanity in actions)
 Om, the source of intertwined cosmic physics and metaphysics is the only truth. Rest are the morphs within (Note the science of metaphysics is not yet discovered, but as per scriptures its roots lies in behaviour, and thus derives the rules of sustainable humanity - so called Religion). May be the search of God particle, the massless property less Higgs Boson shall explain the connectivity between Physics and Metaphysics, and thus the relationship of Humanity to cycles of destruction and re-creations.