Okay, this is downright weird. Don’t be suspicious, nothing is going to jump out or scream at you. Just follow the instructions. Wait the entire 30 seconds.
1.- Click on the link below
2.- Then "click me to get trippy",
3.- Look at the center of the screen for 30 seconds, and then..
4.- Look at your hand, holding the mouse, without moving it away from the mouse..
(it is no joke, it is called "cenesthetic hallucination")