Who we value as valuer values despite this valuing, and depends on valueds valued by us. The valued determines the valuer's relationship with valuing. This self-referentiality is the will only willing will, and power is the relationship between will's action (valuing) and its existence.
As a side note, I refer to that existence as Chaos. Valuing it so, as a living thing which is unpredictable, which feeds me even as I act with no knowledge of it only if I will accordingly, decreases my waste of thought by several orders of magnitude.