After that conversation, silence descended while the projection was still covered by darkness. We couldn't see anything at all.

"Were they swallowed by darkness?" asked Domo, breaking the silence.

A few minutes later, light slowly returned to the projection. Slowly, we saw a perfectly straight path. At the end of the path was a small door. The rippling space had vanished.

"You have successfully restarted your mind to remove all disturbances. A new obstacle is probably waiting beyond that door," said Bulu, sounding as confident as someone who knew what was behind that door.

The two slowly approached the door. Our perspective followed the two as they advanced. Before long, they opened the door and walked through it. A wall of spinning gears appeared before our eyes. The gears were all connected to each other, perfectly covering every single angle in...