Mandukya Upanishad
With an Advaita Commentary from our Understanding
by Kenneth Jaques | 31,733 words
The Mandukya Upanishad is a short, just twelve verses, description of the material manifestation and the eventual return to unmanifest form of the Universe....
Verse 40
40. The unreal has not the unreal as its cause, likewise the real the unreal as its cause. The real as well has not the real as its cause; whence can the unreal have the real as its cause?
The non-existent cannot originate the non-existent. Likewise the existent cannot be originated by the non-existent. The existent is not originated by the existent (there being nothing that truly exists); How can the existent originate a non-existent?
The meaning and conclusion is that all possible cases of origination have been assessed and found to be untrue in reality.