"A person is chayav to drink on Purim until he doesn't know the difference "between" cursed is Haman and blessed is Mordechai".
So many people strive in ruchniyus for ..... mediocrity. Haman and Mordechai were both "extremists". Haman an extreme rasha and Mordechai an extreme tzadik. A person should drink until he doesn't go "between" Mordechai and Haman - he shouldn't be mediocre, he should go all the way. Make a choice in life as to what is right and wrong and become the greatest person you can be.
[Sefer Hachodesh Asher Nehefach]