Everything we feel is coming from the body experiencing the world – and from the body’s perceptions, the animal soul gets its idea of what it needs to survive, and the divine soul fights that. That is how we bring the divine soul into the body.
The love and awe that the soul feels for Hashem gets projected into the body, into the heart, and we run towards the messages of the animal soul. This is how it is set up so the higher soul can overcome it – reorganize it all – and come into the body. This is the animal sacrifice we make from which comes a feeling in the body of love and awe, a higher level of body existence that only we can do through free will.