||People try learning Shulchan Aruch, and thinking that this is the final Halachah. In reality, it isn't. The Posek in each generation needs to learn the Tana"ch and the Gemara, Rishonim, and major Acharonim, including the Beit Yosef & Shulchan Aruch, in order to determine the Halachah. I think that is what he's saying. I know that many have meant what I just explained.