The objection could be raised that if so, the light should only enter after the process of purification. The answer is that the entry of the light and its becoming joined with the Residue are two different things. On the contrary, as far as entering is concerned, the light can enter immediately. However, it must allow the Residue to hold sway until the Residue fulfills its mission so as not to undermine its functioning in the middle. This is why the Line joins with the Residue so as to actually purify it and raise it to its highest levels only after it has fulfilled its mission. Yet it must start to radiate from the outset, as discussed below (Opening 42).