Perhaps it's about change. The heart may symbolize the will or desire for change, and habits are things that are hard to break. So the novel could be exploring how characters overcome their habits with the push from their hearts, and how this process of change shapes their lives.
Love could be a main theme. It often is in many novels and 'heart' in the title might suggest emotions related to love, while 'habit' could be about the characters' routines and how love or other emotions interact with their daily habits.
Well, it might be about self - discovery. The 'heart' could represent one's true self, and 'habit' could be the things that one does unconsciously which might be holding them back from truly understanding themselves. So the main theme could be the journey of breaking free from certain habits to discover one's heart.
Chapter 186, "The Goddess Who Can't Stand the Smell of Pig Manure", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. It opens with Seeing Wen Jiaojiao bravely entering the pigsty, Jiang Yan couldn't...
Chapter 561, "How Can This Young Master Use His Hands to Kill Fish?", is the clearest early answer because the violence around Team becomes final instead of hypothetical. Early on, She had saved Luo Xuan that afternoon, and he already owed her one.. By the end, Can four fish feed ten people?.
Chapter 665, "Give You a Good Lesson on Behalf of Your Mother!", is the clearest early answer because it turns Sister Liu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Why should I get so many points?
Chapter 368, "You Don't Deserve to Be My Mother", is the clearest early answer because it turns Deserve's situation into a concrete plot event. Early on, I haven't detained anyone, how could I possibly detain him?. By the end, I'm your mother, you can't treat me like this!" "How could you sue....
Chapter 594, "Raising Soldiers for a Thousand Days, Using Them for a Moment", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Thinking of this, Jiang Yan squeezed himself next to Zhao Lang while...
Chapter 564, "Why Only 80 Points?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Miss Jiang, what do you need this time?" He Pingzhang's tone was not....
Chapter 307, "I Am Sister's Real Younger Brother!", is the clearest early answer because it turns Mrs's situation into a concrete plot event.
Chapter 401, ""Youth Trainee" Premieres!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from With Huo Xuan's help, Jiang Li quickly got rid of the fans and was...
Chapter 627, "Definitely Not an Accident", is the clearest early answer because it turns Gu Yu's situation into a concrete plot event. The chapter gives readers a real answer by opening on He looked at the sinister smile lingering in Jiang Li's eyes, then at...
Chapter 214, "The Last Day", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Director Sun fell silent for a second. and closes on Even when Wen Jiaojiao fanned Richards' face frantically, he remained....