Yadeveha tadamutra yadamutra tadanviha
Mrityoh sa mrityumaapnoti ya iha naaneva pashyai
The Brahman that is found here is the same there. That which is there is also here. Whoever sees multiplicity in this world goes from death to death
Only one nature exists...
One unique reality...
You may call it whatever you find most inspiring: Allah, Supreme Being, Unique Principal, Universal Consciousness, God or Krishna...
That one Absolute Reality is called "Brahman" by the Upanishads...
The Upanishads teach that this Ultimate Reality manifests and expresses itself as our world of names and forms, which really are only appearances
Our vision of duality as real is due to ignorance...
Our ideas of "here," "there," "internal" and "external" are born of a false identification with the body...
Because the reality is that the only true existence is "Brahman" That, the indescribable...
Only when going beyond the corporal identification, the intellectual, the sentimental, et cetera does the illusion of the multiplicity of this world of appearances, of names and forms, disappear, and we realize our true eternal reality as Brahman Itself...
Only then can the sage realize the "Aham Brahmasmi," "I am the Brahman"...
He realizes himself as an expression of the Brahman, as a manifestation of God.