What is he implying exactly? That you must take some terrible journey through the underworld, resistance is futile, and he will be your expert guide? If so, on what basis?

Therapists are always pitching therapy as a necessity for "depression". But what precisely are they selling? Does he fancy himself omniscient and omnipotent enough to know where your depression comes from, what it means, and how to mitigate or resolve it? And he can do this with anyone who walks through the door?

Therapists did nothing for my depression. One made it exponentially worse.