Naturalization is a way for people who were not born in a particular country to become citizens of that country. If you were born in another country but you live and work in a new country, like the United States, and you want to become a citizen, you can go through a process called naturalization to do so.
Basically, becoming naturalized means you're taking a test to prove that you understand the country you're in and its ways of life. That means you might need to learn things like the national anthem, pledge of allegiance, or the history of the country. You might also have to show that you're a good person by proving that you're not a criminal or doing anything to make you not fit for citizenship.
In order to become a citizen, you will fill out a bunch of paperwork and pay fees. You must also pass an English language test and a civics exam, which covers everything from government to the Constitution to how elections work. Once you pass these tests and if your application is accepted, you will be asked to take an oath of allegiance to the country. Then, finally, after all of that, you will be a citizen of that country and will have all the rights and responsibilities that come with it.
It's important to remember that not everyone can become a citizen through naturalization, and rules can vary depending on the country. But for many people, this process can be a way to become fully integrated into a new country and feel like they belong there forever.