The simplest drug

Asleep I fell into a dream
Awake inside my head it seemed
But as before I dream away
Another world that hides the day

And as I woke I realized still
The dream had caused my head to spill
Confused as dreams invade the rest
Again I slip without protest

Reflection in the mind shown clear
All dreams will last infinite here
At last I wake to find my life
The twisting world will pierce its knife