It is through the ritual power of speech and song that the Navajo are enabled most powerfully to affect and alter events in the enveloping cosmos.
Abram argues that Navajo ritual speech and song are not merely symbolic but constitute a direct, efficacious transformation of the surrounding cosmos by externalizing thought into the medium of Air.
, The Spell of the Sensuous: Perception and Language in a More-Than-Human World, 1996thesis