Dreams are aspirations of something you desire or goals to achieve something in life, dreams is what motivate and inspires you to pursue success.
passion is a powerful emotion that motivate you to pursue your dreams and goals with energy and dedication. Some has to be passionate in order to pursue your dreams.
Everyone has ambitions, and the journey to achieving them can be long and challenging. but sometimes ambitions may not materialize, or they doesn't come true, some people go to any extent/great length and some numerous obstacles to fulfill their dreams, facing a lot of challenges, and difficulties just for them to become successful.