A major theme in this episode is the "heavy load" training. The students are tasked with carrying weighted baskets over long distances without using their Soul Power. This serves a dual purpose: it builds their physical constitution—which is vital for absorbing higher-level Spirit Rings—and it fosters teamwork.
The episode features critical interactions between Grandmaster and the Shrek teachers. Grandmaster’s theories, often ridiculed by the outside world, are treated as gospel within the walls of Shrek. His meticulous planning for the students' future is on full display. He recognizes that for Tang San and the others to survive the cutthroat Spirit Master world, they cannot remain stagnant. Douluo Dalu - Soul Land Episode 20
As draws to a close, the victory celebration is cut short. A mysterious envoy from Spirit Hall observes the match from the shadows. His cold whisper echoes in the post-credits scene: "The Shrek team is dangerous. Eliminate them before the finals." A major theme in this episode is the "heavy load" training