The kicker for this particular challenge is that you will need a projector to make it work. You don’t need to buy some special backlit picture to hang on your wall, or even a specific projector. All you need to do is find the one you want — even if it’s an inexpensive one — to connect to your phone, and find a 10-hour loop of a window on YouTube.
From YouTube, you can choose which kind of window you want to project on an open space on your wall. Many videos also include sound, so if you choose a 10-hour stream of a window that looks out to a tropical thunderstorm, you might also hear sound effects that make you feel like you’re really in a tropical locale.
Or, if you choose a YouTube video of a window that shows steady falling snow, you’ll hear the faint sounds of wind on a cold snowy day.
Source : https://www.distractify.com/p/tiktok-fake-window-challenge