5.522 What is peculiar to the symbolism of generality is first, that it points to a logical prototype, and secondly, that it emphasizes constants.
I follow Black (p. 284) on the translation of hinweist as ‘points to.’
What logical prototype? See 3.315.
What constants? Black (p. 284): “I think the ‘constants’ in question must be the names that could be substituted for the variable in the propositional function to which the quantifier is attached (not the constant formal features of the generalized proposition, i.e. those that show its form).”
Emphasized how? I'm not sure.