1, the words from the bottom of my heart are intentional, anxious, willing, forgetting, always, meaning, feeling, suddenly, thinking, forbearing, worrying, irritating, knowing, thinking, evil, procrastinating, kindness, stupidity, fear, loyalty, wisdom, anger, comfort, suspension and sincerity.
2. "Heart" is an important signifier, and the words from "heart" are mostly related to thoughts and feelings, such as thinking, hatred and admiration.