Optimism is a part of your Motivation personality.  
While Motivation, in general, relates to the emotional tendencies that guide and facilitate the reaching of goals; optimism relates to your persistence in pursuing goals despite obstacles and setbacks.

People who have this competence usually:

• Are most of the time in good spirit, friendly and in a good mood
• See people and circumstances in a positive light
• Persist in seeking goals despite difficulties, obstacles, and setbacks.
• Operate from hope of success rather than fear of failure
• See setbacks as part of a learning process, where failures are always correctable
• Consider every aspect of life to be manageable 

People with optimism get their strength from hope, hope is what moves people who have a positive mind.and attitude. hopefulness is crucial when anyone undertakes a tough task or faces a tough moment.  In general, great achievers are those with the highest optimism about life and the future.