Avalanche

Ball bearings pouring down a slope
An incline of looping treads
As regular as a rain stick
Yet none heralds rain
Or wood, or forest
Simply implacable steel
Unyielding and inexorable
However slow they fall
Bearing down insidiously
No cycle or renewal
No seeds to spring forth
As they come to rest
Solely stasis
A sterile heap
Burying all life entire
Still.