I would like to know the meaning of the word project onto, as far as I see from the context here that the word "protect onto" means that you redeem other people to have the same feeling you have.
Someone who's talking about his friend who invited him to a restaurant that he sees himself as a big deal in it
So here's the example:
We came here because jordan pretty much explicitly said that he is a big deal in this restaurant.
So his friend replies with that:
I'm not concerned with a big deal! I'm concerned with a good meal, it's not all about ranks, you have this insecurity about you that you project onto others.
So now that I gave you the example does project onto here mean that person A feels the insecurity inside him and thinks that other people feel the same thing.