When you listen to a talk or read a book about the Dharma, it’s not for the purpose of getting notions and ideas. In fact, it’s for releasing notions and ideas. You don’t replace your old notions and ideas with new ones. The talk or the writings should be like the rain that can touch the seed of wisdom and freedom within you. That’s why we have to learn how to listen. We listen or read not to receive more notions and concepts, but in order to get free from all notions and concepts. What’s important is not that you remember what was said, but that you are free.