Dirga is an explorer; he has spent his whole life exploring all things in Yamani. That exploration made it easier for him to tolerate anything; however, he was also not picky about anything and was capable of trying all kinds of things, no matter how extreme or trivial they were.
The man is also capable of eating anything, but not because he likes it but just out of curiosity. So far, he had only eaten anything that was close to him and something he had no deep emotional attachment to.
He studied history of all kinds, from various points of view. Either the history of living things is most famous from the point of view of wrenas, or from the point of view of humans. He befriends anyone, makes friends with anyone, and stores all kinds of information in order to survive.