I just came across the following statement:
"Thus, the universal and undifferentiated buddhi needs an individuality-making principle to make a distinction between the ego and non-ego, that is subject and object, as well as between one object and another." (Jakubczak, 2008, p.244, emphasis added)
How funny it is, that individuality once meant impartible, and now an impartible-making principle is said to be responsible for making parts.
Jakubczak, M. (2008)- The sense of ego-maker in classical Samkhya and Yoga: Reconsideration of ahamkara with reference to the mind-body problem. Cracow Indological Studies X, 235-253.