The essence of the Black Moon is freedom as a conscious necessity.
In the area where Lilith located, a person given the most choice. He can behave this way, and depends on him.
The universe sends signals, whether we act, practicing the Black Moon. In case of incorrect actions, the signal goes as a disease.
It often happens that a person works with disabilities. He already understood them, but the karmic retribution continues. In that case, he needs to take it. If he passes the path without bitterness, without rejection, the situation is easier…