Through thinking there is prolonged agony. A deer shakes the life-threatening events off and moves on, is done with it. Yes there is a neural experience, there is a learning on how to escape better next time, that lions are dangerous. How lions smell.
My internal experience of thinking goes on and on and on. We can get into a loop. I can identify with it with my disassoiative thinking. I can label and split off my expereince from the now and relive it many times. Same as looking ahead to the vacations and looking back while the weather is bad here in the Netherlands. All sorts of ideas raise their heads.
