You've got two balls of fire swinging around you, on a chain that you control — but momentum is also a part of this game — plus you're legally blind.

This is what Londoner Bryson Ingram does for fun. Ingram is a fire spinner.

While his vision impairment doesn't hinder his spinning that much during the day, nighttime events mean extra safety precautions from roping himself off from the crowd as it gets more difficult to perceive how close they really are to the spinning poi — the chains with a ball attached to their end, which are lit on fire.

Ingram and his friends were at the Children's Museum over March break entertaining kids and adults with their performance art. The audience sat rapt with attention over the swirling fireballs, as Ingram and fellow spinner, Heather Hargraves, moved around the roped off area with calculated dances.

But while it seems choreographed, a lot of it is just being in the moment because that's what keeps you safe, said Ingram, a massage therapist by day.

“When performing, you think as little as possible or you'll hit yourself in the head,” he said. “It's a practice in the now.”

Ingram has never been burned extensively, although he has hit himself with the lit ball and even did so during the daytime performance. The audience, who audibly cringed in response, heard the quick skin singe but Ingram was otherwise unscathed.

He learned fire spinning from a friend, and picked it up rather quickly having an extensive knowledge of weapon work from being involved in martial arts.

Hargraves, who has been spinning for four years, taught herself through Youtube after seeing it in Costa Rica.

“It just focuses you,” she said of the practice. “The growl of the fire focuses you.”

Also in the mix was Steve “Draco” Beecroft, founder and owner of the Spiritual Martial Arts Centre, a fire-breather who started eight years ago after a family friend came back from Scotland.

While he's not technically “breathing” fire, it's dangerous enough. The fuel he keeps in his mouth is extremely toxic if ingested, and if conditions aren't right he can get flashback in the face — which happened three years ago, burning off his eyebrows.

The community of fire spinners might seem crazy, but they're basically like any other artists, said Ingram. They have to respect their tools of the trade, or else they'll get burned — literally.