Yi script
What distinguishes the "bimo" and the shamans is the way through which they acquire their authority. While both are regarded as the "mediators between humanity and the divine", the shamans are initiated through a "spiritual inspiration" (which involves illness or vision) whereas the "bimo"—who are always males with few exceptions—are literates, who may read and write traditional Yi script, have a tradition of theological and ritual scriptures, and are initiated through a tough edicational process.