Frodo is the patron saint of the depressed, the suicidal, the addicted, the ones living with trauma. We see it best maybe at Mount Doom, where Frodo's very self has been ground down to nearly nothing: "No taste of food, no feel of water, no sound of wind, no memory of tree or grass or flower, no image of moon or star are left to me. I am naked in the dark, Sam, and there is no veil between me and the wheel of fire."