You Feel What You See
Your world is translated in your brain as a series of pictures. These pictures filter your experience and the meaning it holds for you. When they are vividly coloured, have lots of detail and are close to you they have a direct influence on how you feel. When you dial down the sensory details, blur out some details, fade the colours and move the picture further away from you the urgency and emotion fades.
This means that you can control the intensity of your feelings by the way you allow these pictures to present themselves to you. It works just about every emotion and state both positive and negative, but here I want to focus on it’s influence on your motivation.