Answer:
I open wide and tight I shut, Sharp am I and paper-cut fingers too, so do take care, I'm good and bad, so best beware.
I am nothing but holes tied to holes, yet am strong as iron.
Steals an event or even a mood. Reveals the truth or shatters it.
Hands she has but does not hold. Teeth she has but does not bite. Feet she has but they are cold. Eyes she has but without sight.
My life is often a volume of grief, your help is needed to turn a new leaf. Stiff is my spine and my body is pale. But I'm always ready to tell a tale.
Be sure to shout for its answers are weak, but there is no language it cannot speak.