To put it on a simple term, psychology is the study to know why our mind works.
Behavior is not the only thing covered by psychology. It's a huge factor of it, but not all of it.
Psychology also teach us on why people developed a certain opinion, how people developed a certain preference, how interaction with other people affect our minds, etc.
<span>It could be said that Jonathan Edwards who wrote the “Sinners in the
Hands of and Angry God” might actually have written about heaven. It might be
considered a modern caricature that tries to reduce his preaching to one
sermon. He may have felt that it was her mission as a pastor to raise people
affection to God as high as possible. </span>
