During Genshin Impact's Lantern Rite festival, you will need to collect quite a few different items. One of these is Affluence Talismans, which like the other two Talisman types, can only be earned through doing one specific activity. Getting Affluence Talismans will help you unlock prizes and earn primogems.
Affluence Talismans will be available during the Fleeting Colors in Flight event. To earn this particular type of Talisman, the activity you will need to participate in is called Wondrous Shadows. This event has you solve a light and shadow puzzle by turning wood objects around until they make a picture.
Once the picture is revealed, you will earn Talismans. Luckily, the event will give you hints the longer you try to solve the puzzle to help you complete it with ease. There is no combat in this challenge, so you don't need to worry about bringing a team to defeat any enemies.
You will be able to find the Wondrous Shadows event in Liyue Harbor, in the middle of the Lantern Rite festivities.
For more on Genshin Impact, check out How to use the Launch Tube in Genshin Impact & where to get it on Pro Game Guides!