Mind is a word generally used to describe an individual's thoughts and ways of understanding the world. The mind is related to the brain. However, the mind is not a physical object. People have disagreed for centuries about the best way to define the mind.

Scientists and thinkers of all kinds have contributed to our knowledge of the mind. Philosophers, psychologists, and computer scientists have all made contributions.

Many scientists say the mind has three distinct parts. These parts are called (1) the base level, (2) self-awareness, and (3) theory of mind. The base level helps events fit into an individual’s thoughts. Self-awareness is the ability to keep track of one’s own thoughts. Theory of mind refers to the fact that minds can know that other minds exist.

Most complex animals also have what can be described as a mind. A mind enables animals to react to their surroundings. It also allows them to make sense of the world around them.