Of natural origin, this object produced without the help of man constitutes one of the most ancient ritual instruments.
It was already used in the pre-Buddhist era as an attraction of the Hindu deities symbolizing femininity, but also in a more general sense as a container or ritual instrument. When the shell was adopted by Tibetan Buddhism, its powerful sound was particularly appreciated. The shells are rung to call the meeting, to make a musical offer for ceremonies; moreover, their representations appear to adorn thrones, stupas and statues. As part of the eight symbols of good aupicio, the shell represents the glory of Buddhist teaching, which like its sound spreads in all directions.