Class Fifty Eight in Section Six of The first idea

רס”ו ע’ תרנ”ח. To explain the idea that דוקא down here the נשמה becomes a מהלך. Introduction: כלים and אור are exact opposites: We discussed the idea of כלים as being העלם הבדלה הגבלה והתחלקות. They are דומם, no one becomes two and no two become one. Each כלי is created directly from עצמות ומהות. They don’t develop from one another, וכמאמר הנפש מלאה אותיות, as is the case with אור. Accordingly, with כלים coming from a higher to a lower level we use the term כלל ופרט indicating that the lower level, כלי already is on the higher level.