From another world called Perelandra (by CS. Lewis).
In Perelandra, a book by CS Lewis, he describes a little stream that for me, reminds me of the the Dream Stream. Or how it used to be.
"Best of all down the middle of the valley and a welcome to Ranson eyes and ears as a glimpse of home or of heaven, ran a little stream, a dark translucent stream where a man might hope for trout."
Dream Streams give us a glimpse of heaven or home. They give us hope.