Tanya (3) Nefesh HaBahamis. A short little class encompassing the end of Perek 1, Perakim 6-7 and beginning of Perek 8: What is the Nefesh HaBahamis Three aspects 1) Essence: fire wind water or earth 2) Form: mind heart senses 3) Expression: thought speech action, cam stay the same cam go up and can go down.