It seems like na-in was or is a god as well, and he was captured, probably snatched from Gwen by amon. So amon, assisted by his head priest who does the shady jobs for him, holds memory cleansing rituals for na in. That's why na-in has rogue memories appearing in his dreams as well as waking state. And gwen, who also seems to be a god or at least superhuman, has come to get na-in back from Amon. The reason why he is so forward is because he knows he has the power to fight amon if need be.
It seems like na-in was or is a god as well, and he was captured, probably snatched from Gwen by amon. So amon, assisted by his head priest who does the shady jobs for him, holds memory cleansing rituals for na in. That's why na-in has rogue memories appearing in his dreams as well as waking state. And gwen, who also seems to be a god or at least superhuman, has come to get na-in back from Amon. The reason why he is so forward is because he knows he has the power to fight amon if need be.