The One who resides in the state of sunya (Void, Emptiness, Absolute State of non-entity).
She is the one who resides in the absolute state of void.
She resides in that state where there is nothing in existence.
She resides where there is no preconceived notions.
If one were to die, and many hours later was placed on the funeral pyre surrounded by his family and relatives, and just as the mortal remains were to be burnt ie. body that has attained moksha from physical presence, but Prana were infused into the body again, giving the man another chance at life.
Will the man that sprang from the pyre, even look back at his relatives as he is infused back to samsara?
Here he has experienced Shunyata, or the state of attaining closeness with Kaalika.
For she resides in that state of emptiness.
This is why many advanced Sri Vidhya Upasaks still do not walk the path to Kaalika, as she being the devourer of time, she gives this state of Shunyata.
The Eternal bliss, while alive.
Also it is the identification with the physical body; that causes one to fear its disassociation.
Hence the name, SuniyaNivasini