Tara Thurber interviews Tom Sterner, founder of the Practicing Mind Institute, on mental performance. Sterner emphasizes mental sovereignty, the ability to control one's mind, and shares insights from his 45 years of research. He highlights the importance of thought awareness training, which involves focusing on the breath or a simple phrase to detach from thoughts. Sterner advises setting goals with accurate data, using premeditated procedures for high-pressure situations, and interpreting experiences positively. He stresses the need to balance learning with performance and to embrace challenging situations as opportunities for growth.