In the Ab partzuf of Adam Kadmon, the result of a partition that has only the trace of opacity of the third level, producing ten sefirot at the structural height of Ḥokhma, the trace of enclothing from the fourth level remained there in the partition. This trace is not fit at all for fusion with the supernal light on account of its purity, as stated above.61The trace of opacity retains trace amounts of the opacity of the will to receive, allowing it to create a fusion through collision on the partition.
By contrast, the trace of enclothing is far less tangible: It is like a memory or imprint of the enclothing of the supernal light that took place. Such a trace lacks sufficient will to receive to participate in a fusion through collision on its own. By becoming incorporated in the trace of opacity, this trace of enclothing is able to participate in such a fusion, and its presence in the fusion through collision yields a partzuf.
This trace is therefore incorporated with the opacity (ovyut) of the third level, becoming one trace. Then the trace of enclothing acquires the force for a fusion with the supernal light, and accordingly a fusion through collision with the supernal light takes place. This collision produces ten sefirot nearly at the structural height of Keter, because the partition contains an aspect of the enclothing of the fourth level.