Etiquette has its own divine wisdom. It is an art form of being civil, differing across cultures and times, benefiting everyone involved—which, when practiced, keeps us from deviating to ignorantly rude mortals and brings our consciousness closer to a realm beyond this physical world.
Originally, etiquette reflected the universal norms of proper behavior. But, in essence, it is all about self-awareness: how to act in a dignified way when alone or with others, as well as extending a piece of kindness and grace in our interactions, and being mindful of all little details, including respecting the space we occupy.