There are several items you can find during your adventures in Genshin Impact. A particular item you want to go out of your way to find are Anemoculus, which you can find in various locations. Finding them is pretty easy, and stumbling across them can be as easy as being knocked into them by a pig in the wild.
You can find Anemoculus in the middle of lakes, on top of pillars, and in random locations in Genshin Impact. All you have to do is approach the item, grab it, and the item will go straight into your inventory. You will also see a small star on your mini-map as you grow closer to them, so take a quick glance at your map whenever you wander around a new location.
These are extremely useful because you can take them to any of the Statue of The Seven. Give the offering’s statue, and then a new portion of the map unlocks for the first offering, alongside a handful of other rewards for doing it. A statue has a set number of rewards that you can unlock, and you need to access a portion of Genshin Impact’s story using Anemoculus.