The magnitude of pleasure reaches its limit in the removal of all pain. When pleasure is present, so long as it is uninterrupted, there is no pain either of body or of mind or of both together.Being both a mental and katastematic pleasure, "ataraxia" has a supreme importance in Epicurean ethics and is key to a person's happiness. In the Epicurean view, a person experiences the highest form of happiness should they ever be both in a state of aponia and ataraxia at the time.