Haha no worries! An Eija (hand) is kind of like a policeman or a soldier. They go out and keep peace, arrest people, send messages for the Sols or can be security if there’s like, a big event. Eija are often conscripted by other nations to handle local bandits, escort caravans, etc. an Eija-alihn (Hand of death) is an assassin. They do all that Eija do, but also have license to seek out especially bad people and kill them on sight. They can sometimes be more like bounty hunters/trackers to bring in especially elusive people. They may command Eija. 

Taja (arm) are specifically protectors of the Sols. On duty, they are not often found roaming Azurei without their respective Sol unless it’s a mission of secrecy and top priority. They may command eija or eija-alihn. They’re like secret service bodyguards and don’t do so many tasks. Sometimes they act as servants or advisors to the Sols simply because they are always around.