Question

What are Upanishads? Answer in short

Answer 1

UPANISHADS ARE each of a series of Hindu sacred treatise written in Sanskrit.

Answer 2

Upanishads are part of Vedas. Upanishads were created to give the self knowledge ( Atman-Gyana), therefore Upanishads are main texts for Vedanta philosophy.

It emphasizes Liberation can be attained by Knowing the Atman as the source and creator of this physical body and world.

The world is a myth or manifestation of Maya.