The biggest emphasis of Gestalt psychology is that when it comes to perception, the whole picture is greater than the sum of the parts from which it's made. Gestalt psychologists believe that to properly interpret what is seen, heard, tasted, touched or smelled, the mind organizes the perception into groups so that whatever is being sensed can be interpreted without unnecessary repetition.
For example, according to Gestalt psychologists, one dot is perceived as a dot, while five dots together are seen as a group automatically. Without this grouping, the dots would be seen as "dot, dot, dot, dot, dot" and would take longer for the mind to process. Gestalt principles include grouping by similarity, continuity, closure and proximity.