What do you know about the goddess Cerridwen and did you ever work with this deity?

To work with means to pray to, set up a small altar to ect. I saw a statue of her in a metaphysical store and it gave off a really nice enegry. I asked about it and the cashier said that she was known for herbal potions of wisdom. Which was odd, because I was planning on setting up a altar for higher knowledge.