Þjálfiss
Þjálfiss is a minor figure in Norse mythology, known primarily from the Prose Edda. He is the son of Þjálfi and Röskva, who are servants of the god Thor. Thor is said to have acquired Þjálfiss and his sister Röskva after an incident involving his goats, Tanngrisnir and Tanngnjóstr. While traveling with Thor, Þjálfiss, against Thor's explicit instructions, broke a bone of one of the goats to eat its marrow. As a consequence, the goat became lame. To atone for this act, Þjálfiss and his sister became Thor's servants. Þjálfiss is often depicted as a swift and agile boy, accompanying Thor on his journeys and adventures. He plays a role in several of Thor's encounters with giants and other mythical beings, frequently demonstrating his quick thinking and speed. His name translates to "the trainer" or "the one who trains," perhaps alluding to his duties or his own athletic abilities. While not a central deity, Þjálfiss represents the human element within the divine sphere of Norse mythology, experiencing the consequences of actions and serving powerful gods. His story highlights themes of responsibility, servitude, and the relationships between gods and mortals.