If my sister Jane were alive today I could not heal her. Depression is not simply a lack of happiness; it’s a complex illness that comes in many forms, and needs professional treatment.
I have no evidence to suggest that the ideas in this book can treat depression or Post Traumatic Stress Disorder, or any condition related to anxiety. That said, I like to think that someone applying the umpteen keys in this book would be less likely to become depressed, but I don’t know if that’s the case. I certainly don’t claim it to be so.
If you know someone who is depressed don’t give them advice, and don’t remind them that there are people in worse circumstances. That doesn’t help. If you want to ease their pain a little, ask them how they are going, and listen.