This spearhead was probably made for use by an oracle, or in another ceremony or ritual involving the propitiation of a deity, as indicated by its form and decoration, and particularly by the prominently placed word kyai, written in a Tibetan script. This symbol, known as a seed syllable, was sometimes used to invoke a deity in ritual contexts.
Pyhrr, Stuart W., Donald J. La Rocca, and Mr. Morihiro Ogawa. Arms and Armor: Notable Acquisitions 1991-2002. New York: The Metropolitan Museum of Art, September 4, 2002–June, 29 2003. p. 48, no. 45, ill.
La Rocca, Donald J. "Rediscovering the Arms and Armor of Tibet." In Warriors of the Himalayas. New York: The Metropolitan Museum of Art, May 1, 2006. pp. 5, 16, 174, 176, no. 77, ill. p. 176.