However, when we examine these garments individually... The purpose of all the supernal lights depends on their functions. This means that certain lights may be merely subsidiary to other lights in some given function, yet nevertheless each one is a great light in itself comprising many important principles (עיקרים, ikarim). And when they are not subsidiary to those other lights, they are called fundamental principles in their own right, and it is then necessary to consider the different divisions contained in them in accordance with their individual purpose.
So it is with these garments. There is a time when they are subsidiary to Atzilut. In other words, there is the reality of the existence of the functions carried out in the world, which require that the garments be secondary to Atzilut. On the other hand, there are the conditions required as a necessary basis for these functions, and in this aspect they are examined separately, each by itself.