Even when you do the daydreaming long enough you will start worrying eventually. So, how to stop fretting?
These thoughts do not mean anything. They are like the things I see in this room [on this street, from this window, in this place].
I have given everything I see in this room [on this street, from this window, in this place] all the meaning that it has for me.
The purpose of the workbook is to train your mind in a systematic way to a different perception of everyone and everything in the world.