Am I the Butterfly?

I'm sure you clever folks can figure out my inspiration for this one...

Floating -yet again I find myself floating,
In this realm that is neither waking nor sleep.
Through the void I drift, languid;
Hours vanish -or days- in the blink of an eye.
I see all and nothing in these moments;
Emotion, sensation, all escape me.
Free, I believe, then realization hits,
Is freedom merely a dream?
Was I ever truly awake?