I'm studying the poem 'Ozymandias' by Percy Bysshe Shelley. The language is a bit complex, and that's why I want someone to tell whether my interpretation is correct or not.
[...] on the sand, a shatter'd visage lies, whose frown, and wrinkled lip, and sneer of cold command, tell that its sculptor well those passions read which yet survive, stamp'd on these lifeless things [...]
What I think it means (in the literal sense):
The broken face of a man's statue lies on the sand. Its outward arrogance tells that its sculptor captured the passions well. The passions still survive, carved on that lifeless statue.
I'm slightly confused about what 'read' in this line means:
its sculptor well those passions read which yet survive
Did the sculptor understand the passions well or did he portray them really well in the statue?