When we pray it is a catharsis that exist that affects the reward center of the brain. It is a opiate release that ultimately makes us feel better. As the catharsis takes place or emotional release and the opiate regulatory system combine during prayer, we tend to be relieved of pain and stress, because of it.
Catharsis theory comes from psychoanalysis and Sigmund Freud’s theory of aggression and anger. During prayer when we release our anger by talking it out, it feels like a weight has been lifted.
As endorphins are released from the opiate release centers during pain then we feel less hurt.
Both theories can be concluded to work during prayer , because Innocent the main character explores how to help her heart heal over time and grows more and more in love. See her journey through time in this lengthy text, which can help you learn more about: love, prayer, positive affirmations;
while including psychoanalysis and physiological psychology. According to Fox5NY you can even see what happens in prayer during an MRI.