There is a reason there are elaborate stories, rituals, prayers, pilgrimages etc etc in all religions. Its not an accident. All these practices, with the prime feature being Repetition, allows for a mental shift to happen/different parts of the brain are kept repeatedly activated, compared to the ones constantly responding to source of depression/stress/anxiety. This opens the door for a focus shift.
The key point is, it might have an effect on people positively, but doesn't change the environment (and the triggers) people return too.
Therefore at best these are coping mechanisms, until we have holistic approaches, where the people and the environment they are in or return too are both being looked at. Not just one or the other and hoping for the best.