Gee, I never heard this particular phrase.
Of course, what the phrase actually means is very common. Yup
Oddly, when I was 5 yrs old, ah, I remember everything about the scene:
My mind was suddenly 'altered' and from inside me, behind my eyes
I experienced this, (to a 5yr old 'this person', an adult male feeling), looking out of my eyes
witnessing everything in a 'neutral, unemotional, non-judgey ' place.
I had another consciousness in there ...
and it was no 5 Year Old!
At 8 yrs old, my 'altered states' really took hold. (That one I was shown everything our eyes see is fake, unreal, made of dreamstuff.)
Explanation? - I was probably a devotee, meditator in past lives.