What is the origin of the idiom "have the heart" and when to use it?

The origin of the phrase "have the heart" can be traced back to ancient beliefs that the heart was regarded as the center of emotions and character. In many cultures, the heart symbolizes courage, strength, and compassion. Over time, this association influenced the use of the phrase to convey someone's emotional capacity or resolve in various situations. This idiom can be applied when discussing a person's readiness to face challenges, their capacity for kindness and understanding, their willingness to take on difficult tasks, or even their romantic sentiments. It is a versatile expression that highlights someone's emotional strength, determination, or empathy in a concise and impactful manner.