The best therapy is being happy. Health is typically defined as the absence of disease. To me, health is a happy, vibrant, exuberant life every single day of your life. We will never think in terms of cure rates. It gives a false sense of security.
People are always 'in process' until they die.
You don't cure depression. You help a person find happiness, according to their own definition, and hopefully you help them to perpetuate that. So we spend three to four hours in the first meeting. We might go for a walk. If you like to fish, maybe we will go fishing.