The terribly sad thing is that so often I just don't have a chance to daydream. I guess a lot of us have that problem. I could even go so far as to say if we all daydreamed more regularly then maybe the world would be a much better place.
The problem is we're all in such a hurry to do everything. I'm guilty of this myself. I'm even guilty of pushing others (mainly my students) to daydream less and hurry more. Isn't that just sad?
Of course without a bit of focused activity the world wouldn't really go anywhere. The trick I suppose is to achieve a balance between focused activity and the daydream which creates new worlds.