"I sleep. If I dream, I do not know on waking"

I sleep. If I dream, I do not know on waking
What it was I dreamt. (Snow in Lidkoping)...
I sleep. If I do not dream, I waken
In an open space
I do not recognize, because I woke
To what I still don't know. (Perhaps a better world)?
What's best is neither dreaming nor not dreaming
And never waking.