Thus they are implicitly recognizing that 'good' cannot just mean promoting human survival.
The adaptive function of the depression is to change behaviour to promote survival for someone who has been defeated.
There is even evidence that it may promote survival.
Appetite is clearly a very important instinct to promote survival.
In humans and in all animals, the purpose of fear is to promote survival.
There is no way to know how much mind-healing can help promote survival, if indeed it does.
But does it actually promote survival of the weakest?
Like all biological systems, the mind is optimised to promote survival and reproduction in the evolutionary environment.
Neurotrophic factors are those that promote survival and growth of neurons.
So the very design of our brain that promotes survival also makes us vulnerable.