I've played sigma many times and I still don't know what is the great face statue on the right of the stairs to the imperial palace for (not the breakable ones ) so if it is of any use, please tell me it has started to get to my nerves !

i know!

doesn't make sense to me.

It doesn't do anything.

are you absolutely sure cuz I think it has something to do with the other faces or maybe some Item you must get in order to interact with it .

it's nothing, I got all the possible life of gods and golden scarabs, and the only heads I know are the three breakable ones

(how do I know I got all lives of gods? the last life of god I used made a loud PING and the life bar didn't increase)