“Every introverted person has an external function that they engage the outside world with. INFJ's external function is feeling, FE: expressive, sensitive to criticism, values harmony, lives according to norms. So, they feel and care more about the needs and feelings of those outside of them than themselves. This is why INFJ's can get so tied up and upset if YOU'RE having a bad day cause they're feeling all those feelings from you." ”