Hearing a heartbeat in your dream realm often acts as a pulse check on your emotional state. It may indicate a reluctance to acknowledge or address certain feelings, urging you to face them directly. Conversely, the sound of a heartbeat can embody the very essence of existence or be a manifestation of underlying fears. Such a dream might be your subconscious signalling that you're either feeling alive and in the moment or perceiving some form of looming threat.