The Vedas comprises of many branches of knowledge , we can loosely define them in categories. 

Jnana kunda , karma kunda , Upasana kunda , and  further we find the Bhakti Sastra defined as the Smriti of the Acaryas  , their epistemological methods and their etymological translations of Vedic texts according to their specific relationships with Divinity and their realisations of them .

The Sruti are  like the strong commands of Visnu. The Smriti are like family commands ,the puranas are like  a friends commands and the Tantra are  like encouragement and benefits of doing the right thing .

There are different Professors from the four sampradays who possess knowledge beyond the speculative realms  , factually  , knowledge in the proper sense  , decends in the heart of a  fit candidate. 

The Vedas is a living thing and is responsive , every deed is calculated in the automated machine of the universal affairs of  a consciousness with free will and determinism and its supervision is carried out by an all pervading super consciousness  , who is also localised and personal .

Such are the mysteries and workings  of Divinity , Jiva Goswami says , first thing to realise about God is He is inconceivable. 

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