The word Hokhma is comprised of the letters that spell koah ma, which can be understood to mean “the power of nothingness.”
This alludes to the idea that the power to fully absorb something lies at a point which itself is nothing.
This is also true regarding a person’s soul.
Hokhma is the power of listening; it is the initial absorption of something into one’s consciousness.
This capacity is essentially the ability to nullify oneself.
It is the capability to be nothing, to not have any independent existence, as that would otherwise constitute an interposition and an interference.
Therefore, only the power of Hokhma, which is nothing, is able to serve as the vessel to transmit and reveal Ein Sof, which is everything.
Rabbi Adin Steinsaltz