"I can. And do. Eventually you'll be able to too." She believes this completely. Ciri struggles, but she is capable of the kind of magic Yennefer could not even dream of. Yennefer had struggled to harness her own Chaos at first as well. She knows how it feels to feel helpless, but she's not sure saying that would be helpful to the girl.

Bitterness is understandable, but it can also be poison. Look where bitterness has taken Yennefer.