Psychologist Robert Plutchik, Ph.D., created one of the most popular versions of the emotion wheel, a flower-shaped diagram to visually illustrate our emotions and their various, adjacent relationships to each other.
The tool has many variations (also known as the Junto, Geneva, or feelings wheel), but the wheel's overall goal is to clarify what's happening in our inner world, home in on the specific nuances of that emotional state, and understand the depth and purpose behind those emotions.