Attainment of Truth is not the purpose of Upanishads

Acharya Prashant: The purpose of the Upanishads has to be remembered. It is commonly said that the purpose of the Upanishads is ‘attainment of the Truth’ but it is not really so. If you say that the purpose of the Upanishads is the attainment of Truth then you are actually going against the Upanishads.