Bhagawat GITA- Upanishadh

What I heard is a unforgettable sound...the.Bhagawat Gita and the Upanishad that too from my best friend. And its not so long that I used to travel far to the state Library to get some insight into these holy books, not for any religious matter but to understand the universe from the ancestors view.IF the Upanishads can be compared to the cow, the Gita is their milk. So i hope I could get some knowledge from my friend "Su". May my old passion on these precious books get an updation and relaxation.

"Karmanye wadhikaraste maa phaleshu kadachana"