It's a simple phrase, but it can be used in many different contexts:
* "What is your passion?" - "Quelle est ta passion?"
* "My passion is painting." - "Ma passion est la peinture."
* "I am passionate about music." - "Je suis passionné(e) de musique."
The word "passion" in French is pronounced "pa-syon" with the emphasis on the first syllable.