When memory is added to the cerebral matter, an emotional tag is added to the memory. This emotional tag integrates the cerebral matter with core regions of the brain, via the limbic system. From the POV of an animal, this allows similar stimulus, to what has already been learned or experienced, to induce the same feeling, allowing them to react to the core, without having to experiment with the stimulus, each time. For example, if the animal found a strange new food item, and cautiously ate it and it tasted good, the created memory will have a positive emotional tag. The next time they see the same food, they would feel a positive feeling and eat. In terms of humans, our strongest memories have the strongest emotional tags, showing how important brain core induction is to storage and recall; arousal and instinct.
Humans are unique and that civilization and language has added a wild card to this natural animal brain memory schema. This wild card is connected to law. A law memory has both good and evil elements. It tells us how we need to behave to feel socially acceptable; good feeling. It also tells us how not to behave if we wish to avoid feelings of pain. Since these are two opposite and separate emotional tags; happy versus fear, although law is singular, the animal brain treats law as two separate data storage, one for each conflicting emotion. As an analogous example, say after the animal finds and eats the delightful food, he gets sick. The next time he smells that same food, two conflicting emotions will appear; delight and nausea. He will need to weight the two, based on how strong the brain weighed each emotion.
Memories with similar emotional valence will tend to cluster. In terms of law, all the good side of law; positive valence tend to cluster and all the bad sides tend to cluster. In the bible, the good memories of law are connected to heaven and the bad memory cluster is connected to hell. In other words, if you consider who is going to hell, by traditions, it is those who break laws; negative feeling side of law. Hell is full of fear and pain. Heaven is populated by those who practiced the good side of law. You will not find anything with a fear tag in the heaven cluster. Heaven and Hell are projections of how the brain deals with the binary of law. In the bible Satan who is the binarius is associates with knowledge of good and evil.
This is why Jesus did away with the law. This broke that binary memory connection that when back to tree of knowledge of good and evil; law and originals sin. Law, although useful, sets up binary storage. The only way to return to natural, was to do away with law; faith.