(Insight Meditation South Bay - Silicon Valley) From where does speech originate? How does our speech feed back to affect our own heart (in addition to other people)? These are worthy investigations in Buddhist practice. Speech ties back to the three unwholesome roots of greed, hatred, and delusion, as well as the three wholesome roots of non-greed, non-hatred, and non-delusion. Our choices in this realm have a major impact.