"It is useful, and mixed with other ingredients the plant’s abilities are incredible, but when plucking and preparing the plant itself, you have to be aware of the dangers. It is relatively harmless and less powerful when used by muggles, almost not working, but wizards, or witches, have to be careful. The plant can heal your magical aura, but you pay a price if your intentions are not pure. Your magic gets strengthened again but your soul gets temporarily affected. It’s like coming in contact with some kind of dark artefact."