Instead of thinking about what physical goals you want to reach (lose 20 pounds, make six figures, buy a house), you think about the why of these things. How do you think they're going to make you feel (maybe sexy, wealthy, secure)? You'll discover a whole bunch of other ways to achieve those feelings.
If you're an aspiring entrepreneur, your heart is filled with excitement and fear, probably in equal amounts. You want it so bad but you're afraid. I've been there. These books will inspire you to find the courage to get out there and make shit happen.
Danielle has realized that this way of life can't continue; that's she saying "no" now from a place of fatigue and exhaustion rather than from a place of joy. As she observed, she needs white space in her life. So often she's said "yes" to something that is six or nine months down the road, but it comes up so quickly and just adds to her stress.