Does the author omit that between is and the? Are the verbs about turned down and cooled in the subjunctive?
The Buddha taught that kind of happiness. He put it this way: “True happiness can only be found by eliminating the false idea of ‘I’ or ‘self.’” Only then is the survival brain turned down and the personality fever cooled. The only problem with that formulation is that once the “I” or “self ” has been eliminated, then there is no one around to enjoy the feeling of happiness.
(Excerpt from Crazy Wisdom Saves the World Again! by Wes "Scoop" Nisker.)