user
Given a cartoon image and a caption. Caption: Didn’t you see the light? Question: Generating an explanation of why this image/caption combination is funny. Answer: 
assistant
A play on the phrase "see the light". Figuratively, it means to have a revelation about a period of doubt, sometimes in a religious way. Here, satan, a fallen angel of god who sometimes masquerades as a good angel, has not seen the light. But here,  he also hasn't seen the literal street light, causing a car crash. The angel is surprised satan didn't see the light in either sense.