Whenever they play songs too often, even really good ones, people get sick of hearing them, sometimes to the point of never wanting to hear it again. And some people don't like Kondo's writing style.

On stress, I once had a friend who had a line-item in her budget for stress relief. Sometimes it was massages. When she was going to school, it was for a parking pass so she wouldn't have to ride the bus or search so long for parking.

Obviously some stress is good if it motivates us to do important things. But most of us have plenty of unproductive, excess stress.

I'm laughing about your life force examples. It makes sense that we don't grieve the loss of all things equally.