Similar to how a samurai would guard his castle against enemy infiltration, an SSL certificate serves as a protector of sensitive information while it travels to the server. Additionally, SSL certificates function as a defender of a website's legitimacy. When acquiring an SSL certificate for your website, the domain ownership is verified through an authentication process, just as a samurai would verify the identity of anyone seeking entry into his castle to ensure that they are indeed trustworthy and not spies or enemies.