Philippine folk literature reaches its highest point of development in its epics. These are long heroic narratives that recount the adventures of tribal heroes. E. Arsenio Manuel calls heroic narratives in verse “folk epics” or "ethno-epics” and defines them in terms of characteristics common to them as,
1) narratives of sustained length,
2) based on oral tradition,
3) revolving around supernatural events or heroic deeds,
4) in the form of verse,
5) which is either chanted or sung, and
6) with a certain seriousness of purpose, embodying or validating the beliefs, customs, ideals, or life-values of the people (Manuel 1963:3)