I'm curious to explore what else Nietsche says about the "divine animal" in us.
Not sure in detail, but N did elevate INSTINCT and VISCERAL, gut feelings above reason, and made them an important source of insight. I think this goes back to the Michel Onfray (and Cyrenaic) idea of philosophizing with / from our bodies, reconciled with nature, with our feet fully on the ground.
In other words, I think by this N was referring to the many ways in which a philosopher may usurp reason and replace it with other parts of our nature.