For a deeper look at Natsume's emotional journey and his experiences with loneliness and the supernatural, you might find this analysis helpful:
While at the resort, Natsume hears strange noises coming from a closet, leading to an encounter with a dangerous spirit. Zoku Natsume Yuujinchou (Dub) Episode 3
Natsume's self-proclaimed bodyguard, who accompanies him on the trip. For a deeper look at Natsume's emotional journey