The purpose of the various repairs is in some cases to channel the flow of blessing while in others it is to prepare and rectify the actual flow itself.
This is a general rule that applies to all the different repairs found in the Partzufim. Our purpose here is to understand how it applies to the Repairs of the Beard. (The 13 “Repairs” of the Beard of Arich Anpin – the 13 Attributes of Mercy, as signified by differing arrangements of the hairs in different locations of the beard – are elaborated in the Idra Rabba.)