Gestalt Principle of Closure

In psychology, perception refers to the process through which we interpret sensory information to understand our environment. Cognitive factors play a crucial role in how we perceive objects and events. One of the well-known theories in perception is the Gestalt approach, which emphasizes that the whole of something is different from the sum of its parts. Based on this background, consider the following statement about visual perception: 'We tend to perceive a complete form even when parts of it are missing.' Which principle of Gestalt psychology does this statement exemplify?