Fig Tree

What about this concept of the fig tree? We know that the fig tree represented the nation of Judah and the fig tree represented the religion of Judaism as a whole. When Jesus said in John 1:48, before Philip called you, Nathaniel, you were under the fig tree, and I saw you. Now was Nathaniel standing under a literal fig tree? Is that what that means? I don't believe that that's what it means. Nathaniel was under the authority of Judaism.