Neville Lancelot Goddard (1905-1972) was an influential Metaphysics teacher and New Thought/New Age author.
The Power Of Awareness

Leave the mirror and change your face.
Leave the world alone and change
your conceptions of yourself.

I AM

All things, when they are admitted,
are made manifest by the light: for everything
that is made manifest is light. Ephesians 5:13

THE "LIGHT" is consciousness. Consciousness is one, manifesting in legions of forms or levels of consciousness.

There is no one that is not all that is, for consciousness, though expressed in an infinite series of levels, is not divisional. There is no real separation or gap in consciousness. I AM cannot be divided. I may conceive myself to be a rich man, a poor man, a beggar man or a thief, but the center of my being remains the same, regardless of the concept I hold of myself. At the center of manifestation, there is only one I AM manifesting in legions of forms or concepts of itself and "I am that I am".