I got a few questions here....this system should be Universal I guess but how does the following fit into this classification: 1)Non Indians 2)Hindus of a mixed caste parentage eg NB and B or B and NB 3)Non Hindus Next doubt is since its mentions that one should practise what is in accordance with his birth caste what if a person is not from the 1st Varna but is born with the desire to know about religion and curious to know about God and spirituality does he/she have to suppress that thought? Ok next question about Sudras being attached to bodily attachment ..I feel most humans are affected by this affliction and we can see almost all 4 Varnas indulging in worldly attachment..so how do we explain that? I have noticed almost every caste drinking alcohol and the type of alcohol differs only with financial status..but net effect is the same..alcohol is an addictive intoxicant and its Rajasic. Ok what if an individual does not give a thought to be classified into any class and just leads a life of a good human being following only Trikarana Suddhi that is Purity in Thought, Word and Deed would that be a problem?