Reading from the Kabbalistic classic Da'at U'Tevunah of Maran Yosef Hayim, the Ben Ish Hai, this lesson delves into the secret origins of the collective soul of Adam and how after the sin souls were split into divisions named after Adam's two sons Kayin and Hevel. We then discuss the psychological origins of personality and reveal how one's soul source can be determined by one's personality type. This is a very relevant and profound lesson, taking deep concepts of the Kabbalah and making them accesable for all to know, understand and apply to making one's life better.