The document explores how different mental functions perceive time, emphasizing that time moves forward due to the laws of physics and that memory allows for reflection on the past. It outlines four primary mental functions: extraverted sensing (se), introverted sensing (si), extraverted intuition (ne), and introverted intuition (ni), each offering distinct perspectives on time. Individual preferences for these functions shape overall psychological types, influencing one’s perception and interaction with time.