It's the title of a teaching someone shared with me. I think it's a profound take on John 14, 15, 16. It generally talks about how people are miserable and experience grief and unhappiness because of so many reasons. But, that, if we put things in perspective, it always comes down to us not getting what we want in life, from people or from our circumstances. So, to deal with it, we deal with ourselves. If you want to check it out, it's here. I do find this subject really interesting and was tempted to start a thread in BDF to discuss this but the BDF police force, they scare the shizzle out of me. 
I'm sure it is proper at times to sort of shake people out of their sadness, if they are wallowing in their circumstances or using their grief to manipulate others or gain attention. If my neighbor is sliding into depression over the death of a hamster, they should certainly be treated differently than someone who was grieving the death of a spouse.
But trying not to feel grief, or distracting ourselves so that we don't feel and process our emotions, is probably just as unhealthy as wallowing in our sadness or pain. There is a very important balance, where we realize that God created human beings with feelings that will ultimately demand to be felt (whether we like it or not) and we need to process these feelings in a reasonable and healthy manner instead of stuffing them aside or deciding that they are somehow a negative thing.