“Sigh like the wind--open your arms, your chest, your heart--and all creatures will hum to you.”

“What is this "heart"? If I tear open that chest of yours, will I see it there? If I smash open that skull of yours, will I see it there?~ulquiorra”

“Have you ever been in love? Horrible isn't it? It makes you so vulnerable. It opens your chest and it opens up your heart and it means that someone can get inside you and mess you up.”

“Hearts, you say? You Humans are always so quick to speak of such things. As though you carry your hearts in the very palms of your hands. But this eye of mine perceives all. There is nothing that it overlooks. If this eye cannot see a thing, then it does not exist. That is the assumption under which I have always fought. What is this "heart"? If I tear open that chest of yours, will I see it there? If I smash open that skull of yours, will I see it there?”

“Look with your heart and not with your eyes. The heart understands. The heart never lies. Believe what it feels, and trust what it shows. Look with your heart; the heart always knows. Love is not always beautiful, not at the start. But open your arms, and close your eyes tight. Look with your heart and when it finds love, your heart will be right.”

“Open your heart. Someone will come. Someone will come for you. But first you must open your heart.”