Arcanum one hands a person over to speech. They are filled up wherever they talk and listen: in conversation, in reading, in working out how something is put together.
Hence the constant curiosity. A person like this needs a supply of new material — books, conversations, other people's experience — and without it they fade faster than they notice. Silent work done alone drains them more than the busiest day spent among people.
The practical conclusion: keep people around you who are worth talking to, and stop counting conversation as time lost. For this comfort zone, conversation is rest.
The best state arrives when a person does not merely learn something but passes on what they have learned — explaining, telling, writing.
