Every so often, someone on the internet will discover an illusion that sends people into a total meltdown — like that famous Tumblr dress that was either blue or gold, or that mind-bending audio clip that either said "laurel" or "yanny."

Well, a new illusion is now going viral on TikTok, and people are losing their damn minds over it. Y'all ready for this???
In the TikTok below, a man's voice either says "brainstorm" or "green needle," depending on which phrase you decide to read on the screen. Don't believe me? Try it for yourself! Watch the video a few times, and change the word you read with each viewing. The audio will seemingly change, too:
The TikTok, uploaded by user @emilysophie.m, has gone massively viral on the platform, amassing 5 million views in just a few days. People think it's pretty damn freaky:


Some are calling the effect "witchcraft" and "devil magic":


Others are demanding an explanation for the phenomenon:

And, of course, a few people just had jokes:


It's worth noting that this is actually not the first time the "brainstorm/green needle" illusion has captured the internet's attention — two years ago, long before TikTok reigned supreme, the very same audio clip went viral on Twitter:
Think the Laurel or Yanny thing is weird? You can hear the words ‘Brainstorm’ or ‘Green Needle’ based on which word you think about. Try it.