Intro upa

 

Ten Upanishads are the foundation.
These ten are:

 the Isavasya Upanishad,

 the Kena Upanishad, 

the Katha Upani- shad,

  the Prasna Upanishad, 

the Mundaka Upanishad, 

the Mandukya Upanishad, 

the Taittiriya Upanishad,

 the Aitareya Upanishad,

 the Chhandogya Upanishad and 

the Brihad- aranyaka Upanishad

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