For Wellness Explained - A Cure
The "cure" for trauma is not to kill it, but to integrate it. Lockhart has confronted the Baron (his own repressed monstrousness) and accepted that the darkness is part of him. The eel he swallowed is his trauma. He is not "well" in a healthy sense; he is well in the film's twisted sense—he is no longer fighting his own nature. The film is a dark parody of the hero's journey: instead of returning with the elixir of life, he returns with the parasite.
Lockhart's rational, cynical nature clashes with the spa's eerie serenity. He decides to stay overnight. That night, he has a disturbing nightmare involving a deer, a car accident, and murky water. a cure for wellness explained
Lockhart begins the film as a soulless corporate raider, a man who literally says, "I don't care about people." By the end, he has been broken, forced into an eel bath, and bitten into a live eel. He has internalized the "cure." His smile is not happiness; it is the smile of someone who has accepted the darkness. He has become the new patriarch of the castle. Hannah, now a traumatized orphan, will likely become his ward. The cycle of abuse will continue. The "cure" for trauma is not to kill it, but to integrate it
The Baron's relationship with Hannah is a grotesque metaphor for generational trauma and sexual abuse. The Baron has been "cultivating" Hannah for decades, keeping her childlike and dependent. Lockhart, at first a rescuer, is revealed to be just as predatory—he is drawn to Hannah's vulnerability. The cycle suggests that abusers are often created by abuse (the Baron was once a man trying to live forever; Lockhart was once a boy abandoned by his parents). The film offers no clean escape from this cycle. He is not "well" in a healthy sense;
He sets the castle on fire. In the ensuing chaos, he finds Hannah. The Baron, now fully revealed in his burned, monstrous form, pursues them. Lockhart and Hannah fight him. The final confrontation occurs in the Baron's lab. Lockhart shoves the Baron into a giant tank of eels, which devour him alive.