It's a fantasy role-playing game.

DM: You are Keyleth, a half-elf druid . You are the member of the famous group of adventurers. Previously, She  Dimension Door'ed her way into the ritual room, which  Vox Machina  followed over the wall. She seemed to complete the ritual, creating this small, vacuous, spinning black sphere that is locked in place.
DM: Okay, so, 20-foot radius so we'll say probably in the back here and forward this way, so this area between these. So as Keyleth, you put your arms up and this burst of glowing luminescent pinkish-purple energy begins to sparkle through the air like glitter suspended in low gravity, and it drifts through the air in the entire vicinity, you can see it clinging to you guys a little bit. All right. Are you going to move or you going to stay where you are?
Player: I'll step back a bit.
DM: Step out of the Faerie Fire or into it?
Player: Step out of it.
DM: Okay. Am I?
Player: That's good.
DM: Just ten feet? Okay. Ending your turn, Keyleth. Pike, you're up.
