The "Labyrinth" itself is a metaphor for Gus's internal chaos. Under extreme stress, Gus experiences projecting his memories and fears across the entire school.
: We finally see the "Hidden Depths" of Gus's anxiety. His flashback reveals a childhood defined by being used for his intelligence, leading to a deep-seated fear of being a "fool". When Adrian Graye Vernworth (the flamboyant but manipulative Illusion Coven Head) tries to trick the students into taking real Coven sigils by pretending they are "fake," he hits Gus's exact trauma button.
The Labyrinth of Trust: Deep Diving into "Labyrinth Runners" (S2E18)
: This recurring motif (originally taught by Willow's dads) serves as the emotional anchor of the episode. It bridges three generations of friendship: Young Willow to Young Gus. Gus to a panicking Hunter.