"Niilo Klimin maanalainen matka" is a philosophical novel by the Danish writer Ludwig Holberg, which was first published in 1741. In this book, our hero, Nilo Klim, embarks on an exciting journey into the unexplored depths of the Earth due to enmity. He experiences incredible adventures, meets amazing creatures and tests his limits. The main theme of the novel is self-discovery through travels and trials. The author skillfully combines mythology, philosophy and the adventure genre, saturating the work with deep thoughts and philosophical reflections. "Niilo Klimin maanalainen matka" is a book that leaves behind many questions and inspires the reader to think about the world around him and his own place in it.