Heartwarming and uplifting can serve as antonyms for the phrase "most heart rending". While heart rending means something that causes intense emotional pain or sadness, heartwarming refers to something that makes a person feel positive emotions such as happiness and joy. Similarly, something uplifting is inspirational and positive, and it can have a motivating effect on a person's outlook. By focusing on heartwarming and uplifting experiences or moments, one can shift their attention away from the sorrowful or distressing situations that they may be facing. Overall, having an understanding of contrasting words such as heartwarming and uplifting can help one balance their emotional state and remain resilient during difficult times.