When you start a fire burning, you can say you kindle the fire. Knowing how to kindle a campfire is an important survival skill. It can help keep you warm at night, and keep you from eating cold beans for dinner.
The verb kindle not only means to start a fire, but also to catch fire. Another meaning for kindle is to arouse interest or passion. A dynamic music teacher could kindle the students' interest in learning an instrument. Or, romance can also be kindled: "As they danced together, a spark of romance kindled between them."