Shang-Chi and the Legend of the Ten Rings was an interesting addition to the Marvel Cinematic Universe, introducing audiences to a slew of new characters with very few concrete connections to previous heroes. The film quietly teased a lot of mysteries surrounding the powers and elements inherent to realms like Ta Lo and weapons like the Ten Rings, mysteries that have remained unsolved at the time of this writing regarding their origins and connections to the rest of the universe. But some clever fan theories might offer some unique explanations.
Source：https://www.cbr.com/ta-lo-nine-realms-connection-mcu-theory/
