Carrello
The Vedas are the foremost record of great advance made first ever by humanity since its awareness of the physical world around and the metaphysical element pervading it althrough.
The composition of Vedas could have been possible only after the human beings developed the language as the means of their communication and defined it into the components of phonemes (vocalic and consonantal), and morphemes (i.e. root+suffix combinations ).
We have reference in the Vedas themselves that prior to the compositions of Vedic hymns, the intellectual defined the crude form of language into the possible combination of root+suffix. daiviṁ vācamayajanta devāstāṁ visvanlpāṁ paśavo vadanti. 'The scholars scarificed for standardization of language, which was spoken earlier in many forms of dialects by the then illiterates in the society.'
In fact yajña was taken by the Vedic Scholiasts to mean operation. This yajña / operation was carried out always to make improvement upon the earlier situation and so it was called as the noblest act.