What is the main conflict in The Illustrated Man by Ray Bradbury?

The Illustrated Man is a carnival worker who noticed a sign outside an old lady's house offering exquisite tattoos. She worked on him for a whole night, covering his body with beautiful pictures. However, at night, the pictures come to life and tell stories about the future. The Illustrated Man provides a framework for the stories that follow, melding them all into one tale that shows different pieces and parts of a single future.