waste of ____?

She questions ____.
                      (time)
"Am I nothing but the opening and closing of doors?
A rug repeatedly walked upon, a slate wiped
clean of ____."

She questions (memory)
"I can not regret
past mistakes
nor can I ever apologize
instead I try to recognize ____."

She questions (truth)
"I've got lessons to learn
and questions kneading
to be answered
it is
time."

but still, she questions.

why not change?