The law of contiguity is a fundamental concept in psychology that refers to how our minds associate and connect things that occur in close proximity. Synonyms for this concept can include the principle of association, the law of connection, and the theory of continuity. Additionally, within the realm of neuroscience, this principle is often referred to as the Hebbian rule, after Canadian psychologist Donald Hebb. Understanding the law of contiguity is critical for comprehending how the mind processes and retains information, and how we form and reinforce habits and behaviors. By recognizing and applying this principle, we can improve our ability to learn and remember new things, and to break old patterns that no longer serve us.