"d.va " This is at one time the nickname of an esports player (a character in the game Owerwatch 2), and at another time a new girl who became the inspiration for live wallpaper. The ones you see now are incredibly calming.
The girl just lies in a shallow pond with her eyes closed, relaxing and thinking about something of her own. Perhaps if you install such wallpaper to yourself, you will gradually relax yourself, looking at this animation.