Sūtra Bhāshya
The sūtras are meant to elucidate and establish the meanings of the texts. The commentaries try to do so by bringing in the opponent’s views, refuting them and arriving at conclusions after long discussions; there are also differences of opinion in the same school of thought; again protagonists and antagonists. Also different schools of thought interpret the same text in different ways and arrive at different conclusions, contrary to each other.
How then is the purpose of the sūtras served?