An artichoke has a 'heart', but it doesn't beat. The 'heart of an artichoke' refers to the edible part at the center of the vegetable, known for being soft and flavorful. This riddle cleverly employs the term 'heart' in a way that diverges from its usual biological connotation, leading one to think about non-living entities. The linguistic play reveals the richness of English in terms and meanings.