Starting at 26:00 listen to how he explains how the mind creates the dream- from ’starting in the middle’ to filling it in as you go.
See related reference to the microverse concept.
And there you have it- Inception
And there you have it
the dream state becomes reality
the mind-thought-external projections become their -our- reality.
They come to wake up from the dream also see vanilla sky.
That dream state can be pierced and the true reality can shine through and become their -our- new reality.
From Inception scene with the dreamers at :42