I never realized how symbolic and important the conch shell was to Hawaiian traditional culture and religion.
Called the pu in Hawaiian, today it is used to begin almost any ceremony of importance, most often seen in weddings. Its sound is supposed to ward off the bad and welcome all things good. It is used for both religious and secular symbolism.
I really like the idea of warding off the bad. Maybe I should keep a conch around and blow on it when I'm feeling down, haha.