I would like to know what is the use of reading the Upanishads. I ask this because, in order to realize the self and the Supreme being one must experience it. And all of those experiences are written in Upanishads. Merely learning the Upanishads without understanding them is of no use.
Except that, as Lord Krishna said, one who have learned them but not attained liberation will take re-birth in a Bramhin family.
Puranas induce Bhakti and Vedas contain mantras in the praise of the Lord both are useful in coming closer to the supreme being.
However, Upanishads contain things which must be experienced. And we see that saints who have realized the self and the ultimate consciousness talk about things in the Upanishads without learning them explicitly.
Then why are some people said to learn those Upanishads when they should only experience them?