The first precept of Raban Maur'sTheory of Amplifonic Force states that the creative force of the Anthem cannot be stopped or contained. An important rule to examine because it is not simply true in the grand sense, it's true at every scale.
In the case of echoes, for example: although they can often seem inert to the unaided eye, they inevitably transform the minerals and microorganisms surrounding them over time, and even eventually create new material. And it is a well-documented phenomenon that stronger echoes, possessing greater resonance, will take on temporary forms.
These echoes mimic flora and fauna to such an extraordinary degree that more than one unsuspecting traveler has mistaken one for a fellow human, and only learned their mistake at the end of a lengthy, if confusing, conversation, when the mirage abruptly vanished
