Making a giant, 8-foot-by-10-foot portrait of Edgar Allan Poe with thousands of earthworms was just as messy and complicated a project as it sounds, but it was also incredibly fulfilling. Here’s how — and why — artist Phil Hansen did it and what he took away from process.

Phil Hansen ended up using an amazing 52,901 dots to draw this portrait in a process that was anything but child’s play. On the way to setting a Guinness World Record, he had to solve many puzzles — and wrestle with some demons.