Through their coupling, the flows are joined together... The purpose of coupling is so that the resultant influences should not emerge from two places in two different directions. Rather, the resultant influence will already be a combination of all these factors and will divide up afterwards down below to reach the necessary places.
...giving birth to the necessary action. After the combining of the influences is complete, the action goes forth. The reason is that there is no action whatever that will not include a share of both Kindness and Judgment, and therefore the action is only born out of these two influences after they have already been joined together.