Answer: All diseases indicate this. We must understand that above our corporeal (material) system is a spiritual system from where everything descends.
Therefore, there is not a single physical disease that is not a consequence of spiritual disorder. And treatment, too, we can cure our body as much as we like, but until we cure our souls, the bodies will not get rid of any problems. There are such diseases that cannot be cured at all on the animalistic level.
If we start forming one mutually supportive system together, then we can really become healthier. Even educators say that if we bring up children in a good collective, they become healthier. This is clear to everyone.
From the Kabbalah Lesson in Russian 8/20/17