The phrase "beats breast" can be replaced with antonyms such as calm, soothe, and ease. This expression typically indicates a strong emotional response, ranging from grief to anger or frustration. To calm oneself in such situations, one can practice mindfulness and deep breathing exercises. Instead of beating one's chest in despair, try to focus on positive affirmations and solutions to the problem at hand. Alternatively, seek the support of loved ones or a mental health professional to help manage overwhelming emotions. With these tools, we can learn to self-regulate and find peace amidst life's challenges.