"Don't feed the depression" campaign

Advertising agency Bob Helsinki has launched a "Don't feed the depression" campaign in Finland. They say that a depression is mostly a psychological phenomenon, and that people shouldn't cut in spending.

The household saving rates in Finland has dropped for 6 consecutive years, and was -3.76% in 2007. It means that we consume more than we earn money. Is that a psychological fact, or is it a real life economic fact?

I think it is almost irresponsible to advice people to spend money they don't have. When we as people have spent too much, and borrowed too much, the cure is then to start saving again and pay back the debt. 

The boom is the disease, the bust is the cure.