Traditionally, the Veda is said to have been "seen" by some ancient sages, the ṛṣis and the term ṛṣi is analysed as derived from the root dṛś- `to see'.. The Nyāyasūtra and its commentary reproduce this claim and discuss the reliability of the Veda's seers (draṣṭṛ).
One might wonder why are they not called just ''authors''. Does this terminological choice mean that they saw something which already existed before they saw it?
A preliminary answer is that even the Sanskrit words for ''author'' (such as upadeṣṭṛ) tend to emphasise a person ability to put together words, or to teach them, rather than her ability to fully invent something. Moreover, the Veda is not a fictional work, and accordingly its ''authors'' can be said to have ''seen'' it in a way comparable to what one could say about a non-fictional writer, like a natural scientist, who ''perceived'' the truth of a certain law and later put it down in a text which cannot be said to be her ''invention''.