The World Of The Ba'al Shem Tov (8) Chassidus, The New Mussar
From Rav Mottle Zilber's shiurim in Mesilas Yesharim (The Path of the Just), page 10 in the packets. Middos (character traits) define the essence of the person, and mussar (ethics) comes to cure middos problems. Since the eating from the Tree, the whole world became 'sick', meaning that nothing is clear at all. The baalei (masters) of mussar were very clear that if we are going according to Torah, then we are sane, and anything not in the way of Torah is insanity. The derech (way) of Chassidus is the Moshiach's path of mussar, how to fix the middos. You have to know who you are before you can work on yourself properly. Chassidus does not highlight the sickness of a person, but emphasizes the light inside of a person and how to unleash it.