This is the 27th verse of the 13th chapter of
the Bhagavad Gita, The Song of God, one of the most beloved
sacred books of India.
This verse has always been one of my favorites, it moved me
to tears the first time I read the Gita when I was about fifteen
He sees truly, who sees the one universal consciousness existing
equally in all beings, the immortal spirit within the mortal.