The abyan are "unbound spirits" as opposed to the tawagenen, "bound spirits." They are not attached to a single place. They are spirit guides, familiars, guardian spirits, tutelary spirits, etc. Some of the abyan are the umli and daligmata spirits.
They are also called baylan or bantey ("guide").
- Buenconsejo, José Semblante. (2002). Songs and gifts at the frontier. New York: Routledge, p. 112.