The phrase "eats one's heart out" suggests a sense of grief or longing. Antonyms for this expression may include phrases such as "finds contentment", "feels satisfied", "enjoys the moment", or "embrace the present". Instead of feeling consumed by sadness or regret, these antonyms encourage individuals to live in the here and now and appreciate what they have in their life. Rather than dwelling on the past or what could have been, these antonyms offer a positive mindset that focuses on gratitude and the potential for happiness in the present moment.