Epictetus outlines the proper functioning of the mind with this quote:

• Choice – making good choices in thoughts and actions
• Refusal – to steer yourself away from temptation
• Yearning – to be a better person
• Repulsion – of things that are untrue
• Preparation – be prepared for what lies ahead
• Purpose – following your guiding principles
• Assent – understand what you can control and accept what is outside of your control.

Namaste