yeah, there are realms beyond golden core technically but there’s no code for cultivating beyond golden core. The second hidden physique is actually more common than heavens chosen but it’s not that good until the later realms which they usually can’t reach. The physique is heavenly body, and as you go up through the realms there’s an accumulated talent stat that they get that makes them cultivate faster. You can think of it as their talent increasing every time they advance a realm