How does G. N. Devy bring out the importance of the oral literary tradition?

G. N. Devy brings out the importance of the oral literary tradition by referring to the richness of the works of the tribals that have been handed down from one generation to the other orally. He tries to bring home the point that though the literary compositions have been transmitted orally yet thematically and ornamentally they are very rich. The stories and songs that have come down to the tribals through oral tradition are unique. These compositions present the exclusive world view of the tribals. He points out that the wealth and variety of these works is very enormous. In order to show the importance of the oral literary tradition, Devy throws light on the various characteristics of the tribal arts. He shows that one of the main characteristics of tribal arts is their distinct manner of constructing space and imagery, which might be described as hallucinatory. Playfulness is another dimension of this tradition. Devy advocates that proper recognition should be given to the oral literary tradition in view of its variety and richness.