So I read something interesting.
In Hindu mythology (this is going off research, so if you are that religion and I get something wrong, please forgive me):
A Conch shell known as a shankha has both a right-turning spiral (correct and sacred) and a left-turning spiral (incorrect) much Like Sanji's brows.
A shankha is associated with water and Naga though.. yet in the same mythology, the Garuda are enemies of the Naga. In one of the Color Walks, Sanji's shirt had a snake on it. Judge is known as Garuda...
What does it all mean? How can the Vinsmokes be symbolized both? Is this another Zuko situation? Warring bloodlines?