I am sure you have experienced a moment of passion in your life, something that you have been so excited about that it was able to keep you going without eating, drinking or sleeping. Passion does that. It makes you feel alive. Passion energizes you; it enables you to overcome any and all obstacles that might easily distract others.
Passion is an inner force that compels you to go beyond your limits, enabling you to step out your comfort zone into a place where fulfillment is a guaranteed result. Passion is mostly driven by some pleasurable outcome that you could experience as a result of meeting a personal or societal need.
Passion will cause you to take risks, to act in faith, it will even dissolve fear. Passionate people demonstrate a level of bravery others dream of.
Seek to do what you are passionate about :-)