She is...

From Tripura Rahasya, ch.V

For that Supreme Good One, my mother, is ever pure and clear, more extensive than space and subtler than the subtlest;
She is omniscient, yet of limited knowledge;
She works all, yet remains inactive;
She holds all, herself being unsupported;
all depend on her, and She is independent;
all forms are hers, but She is formless;
all belong to her, but She is unattached;
though illumining all, She is not known to any one under any circumstances;
She is Bliss, yet not blissful;
She has no father nor mother; innumerable are her daughters, like me.